Flat Earth Atheist



""It was all very well going on about pure logic and how the universe was ruled by logic and the harmony of numbers, but the plain fact of the matter was that the Disc was manifestly traversing space on the back of a giant turtle and the gods had a habit of going round to atheists' houses and smashing their windows.""

- Terry Pratchett, The Colour of Magic

Atheism in a clockwork universe ostensibly overseen by a completely non-interventionist divinity is one thing, but what about a world that's practically the playground of the mythic forces that created it?

While some authors do this as an honest philosophical exercise, it's pretty much always done for laughs. A self-styled hardline atheist that just happens to live in a high fantasy setting brimming with both huge pantheons of gods rampaging around the landscape constantly causing all sorts of things to happen, and the worshipers that pray to (and immediately hear back from) said pantheons of rampaging deities. Maybe they don't believe in the gods at all, and are totally nuts, maybe they're completely in denial about the existence of gods, or maybe they're feigning disbelief in hopes of ending their worship and bringing about some kind of Götterdämmerung or whatever. Sometimes the character himself is a god (typically a loony one). Sometimes this is a direct attempt to discredit science by comparing it to religion: Instead of using the scientific method, as a scientist does, the strawman atheist relies himself on a devout faith -- in this case a faith that "science" holds all the answers, despite obvious proof to the contrary.

The trope can be justified in some ways. It's relatively common to have a character who openly acknowledges the existence of beings of great power, but refuses to accept their divinity (either because he believes them to be Sufficiently Advanced Aliens using technological trickery, or because he differentiates between a "real" god and a supernatural being that is merely very powerful). For instance, in The DCU (see below) there's no practical difference between, say, angels and alien energy beings. The main difference often comes down to whether or not the subject in question has deep personal implications, like an afterlife. On the other hand, in a world where magic is commonly known to be real, it becomes a lot easier for con artists to pull the wool over the eyes of innocents, so a skeptic to differentiate between "real" magic and "fake" magic can come in handy.

After a certain point, however, it can devolve into semantics, and you can start to wonder what exactly a character defines a god or magic as, especially considering some of the entities they encounter are even more powerful than most gods of myth.

A subtrope of this is the atheist who's plucked out of the normal world and forced to acknowledge the existence of the supernatural, usually only accepting it after something wildly impossible is done to them (like being turned into a dragon and back in CS Lewis' The Voyage of the Dawn Treader or having the flesh burned off his bones and regrown in Niven and Pournelle's Inferno) (even then, it took a long time for the protagonist to drop the idea that it was a theme park for sadistic sufficiently advanced aliens).

Compare with Agent Scully; Magic Versus Science; No Such Thing As Space Jesus; and No Such Thing As Wizard Jesus. See also Crossover Cosmology and Negative Continuity for two possible justifications, along with Arbitrary Skepticism, God Test, and Grumpy Bear. Sometimes one too many strange things happening will lead these characters into Giving Up On Logic.

Don't confuse this with the Nay Theist, who knows supernatural forces exist, but thinks they should mind their own business and leave mortals alone.

Anime and Manga

 * In One Piece's Skypeia arc, Zoro says he doesn't believe in God. Considering the main enemy in that arc is apparently God
 * Additionally, he says he doesn't know whether or not dragons exist when talking to Ryuma (who is famous for decapitating a dragon with one strike), despite meeting all the other weird creatures he's seen in the Grand Line (which in the anime includes a dragon).
 * Well, he knows NOW!
 * On a more general note, Devil Fruits are regarded as mythical in certain parts of the East Blue. While devil fruits and their users are rare, especially outside of the Grand Line (where the main adventure takes place), most of the world's most prominent military figures and the most widely known and feared pirates do possess devil fruit powers, and there is known scientific literature seemingly available to the general public describing devil fruits and their effects.
 * Seto Kaiba in Yu-Gi-Oh says Screw Destiny to the long history of Duel Monsters and of his rivalry with Yugi, even when he is told outright and went through the entire Millennium World arc. Of course, he goes on to found Duel Academia, a school existing solely for the purpose of being a roach motel for Eldritch Abominations, but not until the main Yu-Gi-Oh series itself is over.
 * Kaiba reaches levels of this where he's a damn near parody. In the filler arc, he and Yugi are fighting monster spirits outside of duels, and despite the fact that this crazy stuff is happening right in front of him, he's still adamant that it's all a magic trick that Yugi is doing.
 * Kaiba's denial of magic is far more pronounced in the English dub by 4Kids. In the original, it didn't take him long to get to the point that he recognized that magic is real. He just didn't care. Whether there was a historic and magical importance to Duel Monsters didn't matter to him, winning at it did.
 * Mr. Satan/Hercule of Dragonball Z was completely oblivious that the superpowered main characters were stronger than him, thinking it all to be a trick (he doesn't appear to have done the research on Roshi, Tien, and Goku, all of whom were champions of previous editions of the world martial arts tournament that Mr. Satan rose to fame by winning) and later on a dream. Toward the end of the Cell saga, he seems to be trying to convince himself that it's not real. After the Cell saga, it becomes a Kayfabe put up by Goku and his fellows. Mr. Satan ends up bribing Android 18 to throw a fight against him so as to maintain the illusion that he's the strongest. By the end of the series, with among other things, holding the leash of an ice cream-loving Eldritch Abomination and his beloved daughter marrying the strongest man on the planet, he's fully in the know but helps maintain The Masquerade so as to keep the general population blissfully unaware of the constant danger they're usually in.
 * Edward Elric claims to be agnostic. This despite the fact that not only has he met God, but had a few body parts stolen by it.
 * Well to be fair agnostics can BELIEVE in god they just don't believe that god's existence can be PROVEN.
 * Ed seems to claim this as a passive aggressive form of Rage Against the Heavens. Since God stole his limbs and his brother's body, Ed's probably denying his existence due to him being a malevolent deity, or at least neutral and kind of a jerk.
 * Of course, it's also quite possible that Truth isn't god in the commonly-considered sense. He even says that's a word used to describe him, but he might be a whole host of things, some of them subconscious elements of the person experiencing him. He is, after all, different for each person.
 * One of the hardest things for newcomers to Umineko no Naku Koro Ni to get their heads around is that the main character is having a very intense and logical debate denying the existence of a witch that haunts his family's mansion... with the witch in question. And his only tools in this debate? The magic text she grants to him. (In episode 6, )
 * This starts making a lot more sense as the story goes on. By the fourth arc, he's not fighting to deny magic in itself but the fact that the murders were committed by that witch. By the fifth,.
 * Occult Academy has Maya, who is constantly assaulted by occult forces, yet for most of the series continues to loudly deny their existence - even while being attacked by a zombie in the first episode. She is often described as Tsundere for the occult (even in the series itself once or twice), particularly since despite her (backstory-related) hatred of the occult, she is practically a walking encyclopedia on the subject, and is usually the one explaining occult concepts to the other characters. It's no surprise that people keep pairing her with Umineko's Battler (above), who is similarly tsundere towards witches and magic.
 * In Black Butler Ciel makes a contract with a demon, promising his soul to said said demon. He is not unaware of this fact. Yet, in the anime version, somewhere between dealings with soul collecting Shinigami and psycho fallen angels, he, while siting next the demon he sold his soul to, claims that he doesn't believe in souls. (Note that this is not true in the manga.)
 * In Naruto, Tsunade states the ghouls and ghosts are "just a bunch of hooey". But she's saying it to the guy with a demon spirit sealed inside him. Also, Tsunade's grand-uncle and one of her ex-teammates know resurrection jutsu. And her two immediate predecessors as Hokage each knew how to summon a Shinigami.
 * To be fair, this is only seen in the Filler, which can be rather bad, particularly the later episodes.
 * Pokémon now has Dento/Cilan, who seems to come up with every "logical" explanation he can think of for supernatural events, such as an object floating through glass, EXCEPT that a Pokemon might be using Psychic.
 * In Ghost Sweeper Mikami, the protagonist is called in to help with a possessed patient of a Western-trained doctor. The doctor claims he cannot determine a cause of sickness, which is incredulous taking into account the levitation, horror face and swirling ghost energy around the victim. Doc responds by rolling around on the floor loudly denying the existence of the supernatural in a "La la la I can't hear you" fashion.
 * He gets better by the end after encountering the possessing spirit and personally aiding in the fight with what he learned in medical school... A flying drop kick from his amateur wrestling team days! After acknowledging that the supernatural exists, he vows to prepare for any future occurrences... By training in his wrestling again.
 * A kind of weird example is how Hachigen describes the faith of Shinigami in Bleach. He basically says that Shinigami are more or less atheists, despite technically being ghosts and having a godlike figure in the Spirit King that they have to answer to. It's more complicated than this, as at one point Matsumoto points out that not many people have ever heard of the Spirit King. Hachigen also says that since, as shinigami, they're death gods and consider themselves to be their own deities. Of course, it's possible that Hachi was partially making it up just to piss off Barragan, who was at the peak of his A God Am I Villainous Breakdown.
 * Made somewhat better by the fact that beyond being "the lynchpin", we have no idea what the hell the Spirit King is, so he might not even technically be a god.

Comic Books

 * Ted Knight, Starman, who hung around the JSA for a long time but was still convinced that science explained all of it... somehow. Depending On the Writer, it sometimes did (for a certain definition of "science", anyhow...) And most of the actual "gods" in the setting were actually sufficiently advanced aliens anyway.
 * The modern Mr. Terrific in the Justice Society of America is an atheist, and he was questioned about this and gave the example mentioned (that there were godlike, or close enough entities running around who didn't call themselves gods). Sometimes he has excellent reasons for his beliefs and sometimes he doesn't, Depending On the Writer. Some writers like to use him as a Strawman Atheist.
 * Doctor Terrance Thirteen, the Ghost Breaker, is The DCU's preeminent Flat Earth Atheist (literally), earnestly believing that aliens (like Superman), magicians (like Doctor Fate) and supernatural beings (like the Spectre) simply don't exist at all. Needless to say, he's treated unilaterally as a joke. Ironically, in his original appearances before continuity held sway (that is, before The DCU was firmly established as a Shared Universe where nearly all DC properties resided), the ghosts and magicians he went up against always were fake and his skepticism was presented as a virtuous trait; but when continuity started drawing all DC books into one reality, he was first shown the spirit of his dead father by the Spectre, then he was teamed with the very mystical Phantom Stranger, and from then on he was always wrong, simply because the Stranger's very existence demanded it be so. Dr. 13 currently lives outside of the time stream, aware of his own fictional nature; he is teamed with an alien, a vampire, a French caveman, and a talking vampire gorilla with Nazi leanings, his daughter is a rather powerful witch, and he believes none of this.
 * There have been two alternate takes on Dr. 13, making his skepticism something other than Plot Induced Stupidity. In Neil Gaiman's Books of Magic, the fact he doesn't believe in magic means it simply doesn't work around him, in a cross between Clap Your Hands If You Believe and Weirdness Censor. In Grant Morrison's Zatanna he visits a mystical dimension and is happy to admit something's happening, but defines it all in scientific terms. (Quantum mechanics and M-theory get a lot of crap past the scientific radar.) There's also the Architecture and Morality take, wherein he's simply strongly in denial of reality.
 * Oh course he's meet the DC comic staff so he knows they're all fiction.
 * Dr. 13 frequently alternated in stories where the Phantom Stranger appeared opposite him showing a prior story that was pure trickery he'd revealed only to have things a bit more supernatural (obviously) much of but not always when they were together. He also once disproved that ghosts haunted a house by showing it was actually ALIENS using the house as a stopover point as they teleported across the universe. He's pretty much always been the example of the devout worshiper of science whose blind-spot always has him refusing to accept the evidence of supernatural things because he operates under the (obviously proven wrong) premise that nothing supernatural actually exists.
 * In an issue of DC's Checkmate, a wizard describes magic to an atheist skeptic as "the cheat codes to the universe".
 * In an issue of Planetary, The Drummer uses almost the exact same explanation to Hand Wave magic into the realm of his infomancer powers.
 * In the Marvel Universe, Science Heroes like Iron Man and Hank Pym acknowledge that Thor might be an actual god (though they tend to think of him and all other mythological beings as closer to sufficiently advanced aliens; Thor was actually retconned to be this by Warren Ellis, but who knows if it stuck) and that characters like Doctor Strange, The Beyonder, and the Scarlet Witch are doing something beyond their comprehension. That doesn't mean they're comfortable with not understanding what's going on, don't stop looking for ways to explain it, or that they're specifically religious. The closest we ever get is one or two incidents of straight-up desperation praying after all viable options have been exhausted. The only science hero that has no problem accepting all of this is Bruce Banner.
 * Quasar started out his series as an atheist/antitheist, but after the seminal "Cosmos In Collision" storyline a couple of years in, he became more of an agnostic ("Maybe I'm not the atheist I thought I was. Maybe I just haven't discovered the god that's right for me..."). This was likely helped by the fact that in said storyline, . It should be noted that God in the Marvel Universe is called The One-Above-All who appeared to the Fantastic Four as Jack Kirby, a person they know.
 * Touched on by the City of Heroes comic books. A sizable portion of the eponymous city has been overrun by zombies powered by the magics of ancient evil "gods", another group of mages literally summon ghosts and devils and gods regularly within city limits, and one of the major canon heroes literally makes his armor out of demons. Many heroes still scoff at the concept of Prometheus and Zeus when talking to the former is an important part of making the local phlebotinum work again.
 * The hero of The Savage Dragon remained an atheist even after being sent to Hell (by a villain's magic), witnessing a fistfight between God and Satan, and having a conversation with God. His rationale throughout the whole ordeal was that it was just some weird dream. Later storylines have involved Godworld, a planet housing every god of every pantheon, but these gods are treated like any other superpowered menace, with the question of their legitimacy being unimportant to the story.
 * Brainiac 5 of the Legion of Super-Heroes. In the postboot continuity he scoffs at his teammate Shikari's feelings about finding a way home during the "Legion Lost" storyline. (In his defense, though, the setting he lives in is at the "sufficiently advanced technology" stage or close to it.)
 * If anything, the end of that arc justifies Brainiac 5's skepticism, as the creator deity worshiped by all the local lifeforms turns out to be a Sufficiently Advanced Alien.
 * The snarky Loveable Rogue drow elf Downer from Kyle Stanley Hunter's comics Downer: Wandering Monster and Downer: Fool's Errand calls himself an atheist, despite the fact that he lives in a Dungeons and Dragons world rife with magic and deities. This leads to problems, as no normal cleric will heal his injuries or resurrect him when he dies Ironically, in the end
 * Goofy, who is usually the most naive and gullible individual in the Disney pantheon, turns into a very persistent skeptic every time he gets a visit an old-style witch named Hazel. No matter how many fantastic tricks Hazel does for him, he absolutely refuses to believe that she is a real witch who can do real magic.
 * JLA: Heaven's Ladder had the Justice League meet an alien race that had no religious beliefs... and as a result were doomed to cease to exist when they died, as they had no specific afterlife to go to after death. Using their incredible technology, they decided to create their own heaven instead!
 * Marvel 1602 has a variation on this in its version of Thor. He's not an atheist, but he refuses to accept his own divinity.
 * Beta Ray Bill, in spite of the fact that his origin story involves going to the home of the norse gods, being blessed by Odin after fighting besting Thor in battle is an atheist. Or in his words: "I am alone. I look at the heavens and think them empty. And if not empty, I find the idea of worshipping whatever dwells there obscene. It doesn't change what is right. If there is nothing but what we make in this wolrd, brotherss... let us make it good."
 * It should be noted Bill has never outright dismissed or challenged Thor's claims to godhood and made this statement after witnessing the damage of religious wars. His people were destroyed over the struggle between the traditional religions and the new belief of Bill as a god, the Skrull invasion of Earth in the name of their god, a madman causing genocide in the name of his religion, and further Skrull infighting over whether to follow the traditional Skrull gods or take Bill as their new god.
 * The X Men were once sent to a world shaped according to Dante's Inferno. Colossus claimed he was proud to be an atheist when he saw how cruel God was. Nobody pointed this.
 * Achille Talon has a guy claiming he isn't afraid of ghost because he talks with his revenant cousin at every full moon, and he is a sceptic. Actually the guy was part of the fake ghost conspiracy, but still...
 * Nicely justified in Neil Gaiman's take on The Eternals, when Mark Curry refuses to believe Ikarus is an ancient immortal who was worshiped as a god because he lives in the Marvel Universe. "It's a weird world out there, dude. But if Spider Man said he got his powers from reading Chariots Of The Gods, guess I'd figure he was crazy too."

Film
"Seth: And if there is a Hell, and those sons of bitches are from it, then there has got to be a Heaven... Jacob, there's gotta be."
 * Not quite atheism, but in Erik the Viking Harald the Missionary, who accompanies the Vikings on their quest, staunchly refuses to believe in the Norse gods and their mythology... even when they're standing outside the gates of Valhalla. Of course, he can't see it, because he doesn't believe in it (he is a Christian, after all), but it certainly causes a great deal of frustration with his crewmates. Turns out to be a plot device when the Missionary is the only one who can leave Valhalla to save them all, since he doesn't believe in it.
 * In a somewhat fridge logical example, Han Solo from Star Wars. At the start of A New Hope he doesn't believe in The Force, despite the fact that the Jedi were a major power in the galaxy up until about 19 years ago.
 * In the Expanded Universe, The Emperor made atheism the official (un)belief of The Empire to discourage belief in the Force and hopefully prevent the return of the Jedi.
 * In Jesus Christ Vampire Hunter, the title character gets attacked by a mob of atheists. "You don't know us, because we've never talked to you before!" Yeah, it's a weird movie.
 * At the start of Ghostbusters 2, the Ghostbusters have been shut down as frauds and many characters don't believe in ghosts. This is despite New York City being attacked by a giant marshmallow man at the end of the first movie.
 * Walter Peck in the first movie firmly refuses to believe in ghosts even when his own actions cause the rampaging ghost menace in the first place (or maybe he had his denial blinders on). Not to mention the hundreds of eyewitnesses who have seen ghosts and seen the Ghostbusters at work. Peck's accusation that the Ghostbusters use gas to cause hallucination is made without the slightest shred of evidence.
 * In the B-Movie Voyage to the Planet of Prehistoric Women, the eponymous women come to accept that their various nature gods are false after they fail to kill the human astronauts. At the end, they declare the humans' dead robot to be their new god. This ignores the fact that their prayers to the gods, although failing to kill the humans, did cause volcanic eruptions and floods, and killed the robot that they accept as the "strongest god".
 * Stan "The Man" Uris in Stephen King's IT.
 * Referenced in Dogma when Loki, the former Angel of Death, talks to a Nun early on. His friend Bartleby points out that he knows for a fact there is a God, that Loki has stood in His presence, and He has spoken to Loki personally, yet Loki just claimed to be an atheist. Loki responds he just likes fucking with the clergy.
 * Averted in From Dusk Till Dawn.

"Jason: They won't answer the believers. Would they answer a non-believer?"
 * In Jason and The Argonauts:

"Jason: In time, all men shall learn to do without them!"
 * Later, after lots of divine intervention, he pulls a Gods Need Prayer Badly.


 * In Tron Legacy, Zuse admits that he doesn't believe in Users, while talking to Sam Flynn.
 * In this case, his statement is not meant to imply that he believes that Users don't exist, but that he doesn't have any faith in them anymore.
 * This also the case in the original Tron Where the MCP punishes any who don't give up their belief in Users.
 * In Second Glance, a movie that's essentially Its a Wonderful Life but with a young Christian wishing he wasn't a believer, rather than never having existed. So an angel makes it happens and walks him through a day in his life as a non-believer. Appart from many cringeworthy Unfortunate Implications and Hollywood Atheists, there's the very odd part of the protagonist living as an unbeliever through an explicit miracle, narrated by an angel.
 * Subverted in the Clint Eastwood movie Hereafter, which analyzes the possibility of an afterlife from many different perspectives, including one of an atheist scientist who nonetheless believes in life after death.

Literature
"The Whisper: To Nyarlathotep, Mighty Messenger, must all things be told."
 * Frequently parodied in Discworld, where atheists are often hit with lightning on clear and sunny days. Feet of Clay features Dorfl, a golem who will only believe in gods when they can be proven by rational debate. Offler decides to settle this by hitting him with a lightning bolt but Dorfl simply shrugs this off, saying, "I Don't Call That Much Of An Argument". It seems that Dorfl is the gods' worst nightmare -- a ceramic atheist. Fireproof!
 * In Small Gods, a bartender in an Ephebian bar for philosophers says: "We get that in here some nights, when someone's had a few. Cosmic speculation about whether gods really exist. Next thing, there's a bolt of lightning through the roof with a note wrapped round it saying 'Yes, we do' and a pair of sandals with smoke coming out. That sort of thing, it takes all the interest out of metaphysical speculation."
 * Which is why the Library of Ephebe is roofed in copper.
 * The gods also aren't very fond of being fooled with. A footnote in Hogfather describes one philosopher indulging in the Discworld equivalent of Pascal's Wager... only to wake up in the afterlife surrounded by a lot of deities with pointed sticks saying, "We're going to show you what we think of Mr. Clever Dick in these parts."
 * Let's not forget atheist Sergeant Simony in Small Gods, who tells the manifested god Om, "Don't think you can get round me by existing!" Interestingly, Om doesn't actually mind this, and notes that, as the reason gods want worshipers is because Gods Need Prayer Badly, such fervent belief in nonexistence works just as well, so an atheist that enthusiastic is actually worth more to a god than a casual churchgoer.
 * Played with in the opposite direction with Mightily Oats from Carpe Jugulum, an Omnian reverend who has a crisis of faith throughout the story. Granny Weatherwax helps snap him out of it by telling him that if she saw her god personally save one of his greatest disciples in front of a large crowd, she'd live her life defending her religion to the bitter end.
 * Of course, Granny's standard approach to gods is that just because they exist is no reason to go around worshiping them - it only makes them start putting on airs.
 * And don't forget the God of Evolution, who is himself an athiest. Talk about Mind Screw!
 * In the last The Chronicles of Narnia novel, The Last Battle, a group of dwarfs who had turned atheist after being burned by the cult of "Tashlan" manages to trap themselves in an inverted Lotus Eater Machine effect when they were brought into Heaven during the end of Narnia as we know it.
 * Also, Uncle Andrew, who refused to believe that the animals were talking and trapped himself in a Weirdness Censor.
 * And then there's Eustace in The Voyage of the Dawn Treader. He refuses to believe that Narnia isn't on Earth, while on a ship whose X.O. is a three-feet-tall talking mouse. The movie throws in a minotaur as the Master at Arms to make this even more ridiculous.
 * The inclusion of the minotaur is made even funnier when he and a human shipmate make fun of Eustace for talking to a seagull and expecting it to respond, with their implication that Eustace ought to have known better.
 * Richard from The Sword of Truth series denounces the concept of an afterlife where people are rewarded or punished for their actions, because "nobody has ever come back from the grave to describe conditions in the next life." This despite having personally conversed with the spirits of the dead at least three times, and even having gone to the underworld and come back.
 * In David Eddings' Elenium, the Elene people believe in only one God and their religion is almost exactly like the Catholic Church. Their God doesn't respond directly to them and they never see him. However, they do live on a planet with about 1,000 other gods. What is really weird is when the Church Knights (the military arm of the Church) need magic to fight magic, they get four priests from four of the other gods (who, again, the Church says don't exist) to teach them magic. And that magic is basically praying to the other gods (who according to them don't exist) for spells. Other races of people do find the Elene religion strange that way, especially the ones who actually meet their gods. Amazingly enough, Eddings gets it to work.
 * Thomas Covenant the Unbeliever from the Chronicles of Thomas Covenant is a good example of the subtrope of the atheist dropped into a supernatural world. It takes him the whole first trilogy to accept that The Land isn't just a figment of his imagination. Even then, he doesn't stop believing the Land is a hallucination. He just concludes that it's an important hallucination.
 * The Left Behind series. After a wide variety of miracles, divine intervention, etc. it begans to strain disbelief that so few people would convert.
 * Early in Perdido Street Station, Isaac (a "scientist") expresses just such sentiments. However, given that his world includes sentient steam-powered robots, Lovecraftian horrors, aliens, electricity, alchemy, necromancy, parallel universes, and a few other strange forces, gods might be the only thing it's safe to disbelieve in (though there's plenty of religions available).
 * In Stephen King's novella The Mist, the main character refers to a group of "rationalists" who refuse to accept that something very strange and dangerous is happening out in the eponymous mist as "The Flat Earth Society." I don't think the term comes up in the movie, though.
 * Mau, the hero of Terry Pratchett's Nation, refuses to believe that the gods are anything more than superstition and lazy thinking -- despite being periodically shouted at by the spirits of his ancestors, and courted by Locaha, the god of death. As the old priest points out, though, this may be more anger that the gods have so thoroughly let him down than genuine atheism -- after all, being the sole survivor of a tsunami has left him pretty goddamn traumatized. As the priest says to Mau, "You want the Gods to exist just enough that you can be angry at them for not existing."
 * The gods themselves seem more like ineffectual echoes than genuine powers of the universe, so disbelieving them can be seen more as disbelief in their hype of themselves, rather than in their subjective existence (all observations of gods in the book is subjective -- no omnipotent narrator's solution is presented).
 * "Why do they want gods? We need people. That is what I believe. Without other people, we are nothing."
 * The Tolnedrans in The Belgariad worship a God that loves money, which sent them down a road to love money more than Gods, so that they're effectively atheist businessmen, and their God couldn't be happier with them. Most Tolnedran characters will cling to their atheism no matter how much the world's supernatural elements prod at them, including a scene where General Varana spends an entire tactical meeting facing away from the other commanders so that he won't have to see the sorcerers he's working with shapeshifting and casting spells.
 * Further proof of this trope by the Tolnedren's, according to any Tolnedran, and the entire Tolnedran government, there is no such thing as magic, yet there are also specific laws making it illegal to use the very magic the law makers agree does not exist.
 * In The Dresden Files, Sanya is a Russian man who was once possessed by a Fallen Angel and offered redemption and a kick-ass magic sword wrought from one of the nails that crucified Jesus, from the hand of the Archangel Michael himself. He describes himself as agnostic. After all, the whole thing might be caused by Sufficiently Advanced Aliens, a dream he's currently having in a coma, or a hallucination of some sort. On the complete other hand, he takes the existence of demons, faeries, and wizards without much question.
 * Sanya's attitude about the whole thing is that it doesn't matter if his power came from God or not, he's helping people who need it, and that's all that matters. Or he's just insane. He's in no hurry to figure out which explanation is true.
 * To be fair, the demons are just beings from another dimension called The Nevernever, the fairies are just creatures from another dimension called Fairie, and While angels and demons in the Christian sense exist, there's still no telling whether God is just this universe's equivalent of the Fairie Queens, or if he really is the creator of all universes and everything in them. Plus, you kind of have to believe in things you've personally killed.
 * Even more funny: Queen Mab acknowledges the existence of God. No mention if he's a creator, but she acknowledges he exists and has personal opinions on all his Archangels (she likes Uriel).
 * Dresden himself, despite being best friends with another sword-bearer, and having had open discussions with Archangels, doesn't consider himself a "Believer", either. This is less a lack or weak belief, but more of a difference of opinion about a certain Deity's Modus Operandi.
 * Despite being a Nay Theist himself, Dresden finds Sanya's agnostic views extremely amusing when he first hears them. He is quick to point out all the supernatural things Sanya deals with on a regular basis, and ask if a Knight of the Cross is even allowed to be an agnostic.
 * The Mi-Go, HP Lovecraft's Fungi from Yuggoth, appear to be an entire race of these, at least according to some Cthulhu Mythos materials. Though they live in a world overflowing with monstrous, supernatural beings with horrific powers, rather than worshiping them as gods like most mortals aware of their existence, they plan to use their science to either control or destroy these entities. In contrast to the hopelessness that surrounds any human confrontation with the Mythos' various cosmic horrors, you get the feeling that the Mi-Go might just have some chance of pulling it off, probably because, unlike humans, their science is not inhibited by old-fashioned limitations like ethics. When you think about it, they may just be the scariest damn things in the entire Mythos.
 * Alternatively, they may just have Outgrown Such Silly Superstitions. After all, many if not all of the 'supernatural' entities of Lovecraft's creation are themselves 'only' alien lifeforms that humans -- and insane cultists in particular -- simply easily mistake for gods or demons.
 * According to The Whisper in Darkness where the Mi-Go are introduced, they do seem to worship Shub-Niggurath and Nyarlathotep. It does sound like a pragmatic relationship, though; you really don't want to annoy forces like that, no matter how great your civilization is.


 * Jayce in the Instruments of Humanity series considers himself an agnostic even though he belongs to an order founded by angel and has met and killed many a demon himself. He claims it's because he's never personally met an angel or knows anyone who has but he does know that holy water, sacred ground and blessed weapons work because he uses them on a regular basis!
 * Jalil in the Everworld books is a teen-aged atheist from this world sucked into a world where various mythological deities are real. He's fairly smart about it, but more-or-less claims them to be Sufficiently Advanced Aliens and/or that the laws of physics in this world are just different and assumed to be "magic".
 * Interestingly, this series plays with the trope with another character: April, a devout Christian brought to Everworld. While she seems more open to displays of the obviously supernatural, she also claims the various deities aren't "real gods" while at the same time having a small crisis of faith.
 * Jalil's issues are further examined by the other characters' opinions. The acid-tongued, magic-loving Senna in particular has a few interesting things to say about it. "No wonder you don't believe in God or gods: Thou shalt have no other gods before Jalil."
 * Allan Carpentier, the hero of Larry Niven and Jerry Pournelle's Inferno, believes that the world he finds himself in is just a copy of Dante's Inferno built by sadistic Sufficiently Advanced Aliens..
 * In Saturn's Children by Charles Stross, all the characters are robots (though that word is considered obscene). Most of them, based on design schematics and such, believe that they were created by human beings. A few, however, believe in the holy doctrine of Evolution, and its prophets Darwin, Dawkins, and Gould.
 * Also by Charles Stross, Bob Howard of The Laundry Series describes himself as an atheist because he doesn't believe in God. He then turns the trope inside-out by saying that he definitely does believe in non-Euclidean monsters from outside our universe that think human souls are crunchy and good with ketchup.
 * In Warbreaker, Lightsong is a god who doesn't believe in his own religion. Another character, Siri, is married to the God King but doesn't believe in him. In both cases, though, they believe in the existence of the potential deities, just not their divinity. Siri does believe in 'a' god, just not the one she's married to.
 * In Towing Jehovah by James Morrow, God Is Dead and his two-mile corpse is floating in the Atlantic Ocean. The Vatican hires a disgraced oil tanker captain to tow God's body to the Arctic where it can be kept on ice before it rots away or is devoured by sharks. One of their primary antagonists is the Central Park West Enlightenment League, who upon hearing the news, try to destroy the corpse with bombs to remove concrete evidence of a deity. One of their members does remark if they were truly committed to scientific reasoning they should try to study the corpse and accept the possibility they'd been wrong all along, but the majority reject her.
 * Given how vastly the notion of God physically floating dead somewhere reduces His stature, you'd think it would be the Vatican not accepting and indeed trying to destroy the evidence.
 * Given that the Vatican was commanded by the Heavenly Host to give God a proper burial in an ice cairn, I think their options were rather limited.
 * In Caitlin R. Kernan's novels, the characters spend a suspicious amount of time fervently denying anything supernatural is happening... including when they're blasting ghouls into chunky salsa with shotguns. Former psychic detective Deacon Silvey is a repeat offender.
 * In the Kitty Norville series, the masquerade was broken in the first book of the series. Kitty's House of Horrors is the seventh book, set about four years after the start of the series, and is probably the first time the reader meets a person who doubts the existence of the supernatural. Author Conrad Garrett argues that people who claim to have supernatural powers are frauds or crazy, that video footage of a werewolf shapeshifting is CGI, and that CDC reports on were-people and vampires are the result of collusion with drug companies who want to make money off the conditions.
 * Lampshaded in some of Patricia Briggs' Mercy Thomas novels. Werewolves have recently gone public; the fae have been officially out for a decade or so, and demons are also real, but the protagonist meets quite a few people who don't believe in vampires or ghosts, and her friend Adam, a werewolf, doesn't believe in God (although she does herself).
 * In Christopher Stasheff's Her Majesty's Wizard, an agnostic from Earth is transported to another world where he discovers not only his magical powers, but the unequivocal Judeo-Christian deity (God) and opponent (Satan) who directly and consistently interfere in human affairs. Priestly blessings have direct and easily detectable effects, the hero interacts directly with his personal devil who tries to drag him into hell, he runs into at least one saint who tells him what to do after transporting him from a wrecked church into a fully restored one and back again, the act of being knighted by a king (who rules by divine right, and who happens to be mostly dead at the time) actually confers martial abilities, and at the end after the chief bad guy is defeated we see hordes of devils stream out of the sky and compete for his soul, only being banished by the intervention of priests. Stasheff pointed out in the afterword that medieval people saw God and the Devil everywhere in their daily lives, and this book is an attempt to show that where most fiction of this type completely ignores this aspect of their lives.
 * In S. M. Stirling's Emberverse, a universe that's kicked off when a bright light rends inoperable all modern technology at once, The Chessmaster Sandra Arminger remains one of the few atheists. She does admit that thank you, O blind and ontologically empty dance of atoms doesn't have a lot of punch as far as expressions of relief go, but all the visions and visitations and uncannily answered prayers other people experience don't go towards affecting her basic stance (give it until she meets her first High Seeker).
 * In Piers Anthony's Incarnations of Immortality series, one's spiritual beliefs, among other factors, determine what kind of afterlife one experiences. Consequently atheists, who don't want to go on after death, despite living in a world of magic as well as science, have souls that end up disintegrating upon their deaths.
 * In Robert E Howard's Conan the Barbarian story "The God in The Bowl", Dionus is a materialist in a world with plentiful magic.
 * In the setting of Philip K Dick's A Maze of Death God is openly real, and prayers are a commonly accepted way of solving problems, though they usually have to be carefully composed and transmitted by radio into outer space in order to work. Dr. Babble, however, is an atheist who believes that the "God" in question is just a Sufficiently Advanced Alien.
 * The characters in the Knight and Rogue Series are fully aware that there are two gods out there who somewhat violently protect plants and animals, but as no greater being guards humans there's no serious religious practices.
 * in The Chronicles of Narnia is a variation - although he believes in the Calormene Gods, he also believes that the ending of the White Witch's eternal winter has come about through "the alteration of the stars and the operation of natural causes." Despite the fact that the Calormenes have been entertaining fawns, talking animals, they know that Narnia is guarded by "a demon...in the shape of a lion" and that the long winter was caused by a witch.
 * In the Warrior Cats series, there are two. Cloudtail refuses to believe that StarClan exists, despite seeing his leader come back to life after being killed and the fatal wounds healing themselves. But even more notable is Mothwing, a medicine cat. She had a prophetic dream herself right after being apprenticed, and everything that Leafpool has told her, which she couldn't possibly have known on her own, happens to be true. She has also seen her own leader lose lives and come back to life. As part of the job of the medicine cats is to be the spiritual leader of the Clan, this makes her the equivalent of an atheist priest.
 * Also Scourge, hence his surprise when he kills Firestar only to revive a few minutes later.
 * Elizabeth Bathory in Count and Countess. She and Vlad Tepes can write letters to one another despite living in two different time periods, but she still doesn't believe in the existence of a deity.
 * Dunk, the hero of the Blood Bowl novel Rumble in the Jungle. In that book he encounters his long lost sister who is haunted by the ghost of their late mother. Dunk is unshakably convinced that the ghost isn't a real ghost at all but merely a daemon who (somehow) gained the shape and memories of their mother despite no particular evidence such a thing is possible and his own frequent encounters with more physical undead like vampires.

Live Action TV

 * Babylon 5 Zig-zags on this topic, Garibaldi doesn't believe in souls, but the Soul Hunters routinely trap them. Dr. Franklin suggests that it may be possible to encode a personality matrix and create a clone of a human mind, though, and the Soul Hunters themselves don't believe in an afterlife.
 * His friend Lyta Alexander tells him that when a telepath is scanning the mind of a person who dies, he or she can see the person's soul going through a portal to the beyond, although she acknowledges that it may just be the only way the brain can interpret what is happening.
 * And the Minbari broke off the war with the Earth Alliance because they found "undeniable proof" of Minbari souls being reincarnated in humans, namely Sinclair and other pilots they captured. Apparently they have technology that can scan and identify souls.
 * An episode of the Hercules: The Legendary Journeys Spin-Off series Young Hercules featured a teenage, atheist Pythagoras who refuses to believe in the Greek gods. This puts him and everyone around him in extreme danger of said gods striking them down, until Hercules, and a run-in with Strife, manages to convince him that the gods are real after all. Or at least, he quickly adds, there are beings that seem to be gods...
 * Deep Space Nine also offers many classic examples of Flat Earth Atheists, specifically in regard to the Bajoran Religion. Despite the existence of bona-fide holy relics in the form of the Orbs of the Prophets and the sworn statements of several high-ranking Starfleet officers, the Federation still treats the Bajoran Religion as little better than fairy tales. Prophecies and visions of the future are almost always dismissed as hallucinations and wild speculation, despite the well known fact that the incredibly powerful aliens beings known as "the Prophets" exist in a state outside of time and are perfectly capable of giving visions and inspiring prophecies. That's still more along the lines of the Trek No Such Thing As Space Jesus staple than this, though. A few officers at least come around to the idea that the "wormhole aliens" are definitely powerful beings that have a relationship with Bajor (with which they have an odd relationship), but the worship of them is exlusively the province of the Bajorans themselves.
 * The Federation has extensive records of numerous powerful beings, such as The Q, who are easily on par with the wormhole aliens and don't claim to be deities, so their lack of worship is justified. However, Starfleet's excessive skepticism of the very real abilities of the Prophets does get a little odd.
 * Heck, in the Season 6 finale "Tears of the Prophets," Bashir goes so far as to question the very existence of the Prophets.
 * Torchwood's Jack Harkness is a possible example. The finale of the first series opens with him scoffing while another character reads from The Bible. By the end of the episode, he's fought a monster named Abaddon. Whether or not a lot of the characters are supernatural, though, is ambiguous. Justified in that at this point Jack has died and come back to life several hundred times and does not consider the resulting experiences consistent with the existence of God. He's also been consistently searching for proof of something after death, but all he's gotten from people who've been there is, "None, I got nuthin'."
 * The series apparently misses the idea that you can disbelieve in an afterlife without disbelieving in a deity of some kind.
 * In the 1998 Merlin series, King Vortigern does not believe in magic, or in The Fair Folk, or in the gods of Celtic Mythology, or in the Christian God. This is despite witnessing magic, meeting Queen Mab, a Fay Goddess, and dealing with the wizard Merlin and hearing some of his (eventually proven correct) prophecies.
 * Vortigern does accept help from Mab to thwart Merlin and recognizes her powers. It's not so much that Vortigern doesn't believe; he simply doesn't give a shit.
 * Both Cavil and Adama present themselves as atheists in Battlestar Galactica, long after it seems that either souls, gods or super-human / super-cylon beings almost have to exist.
 * In a non-fantasy version of this trope, United States of Tara features, one of Tara's multiple personalities who doesn't believe in DID.
 * While Agent Scully in The X-Files is an example of, well, an Agent Scully, Mulder is quite often an example of a Flat Earth Atheist on notable occasions. He is more than happy to believe in Yetis, Psychics, Vampires and Little Green Men, but any hint of an Omnipotent God in the equation and he suddenly becomes more skeptical than Scully at her most ardent.
 * Which makes quite a bit of sense if you consider that he does not need an omnipotent god to explain anything strange until such a being is necessary to explain the strange occurence (can it be explained by allowing for the existence of a almost omnipotent god).
 * Inverted in Stargate SG 1. Many worshipers of the Goa'uld and Ori see SG-1 as this. When the heroes try to explain that the "gods" they worship are in fact Sufficiently Advanced Aliens, a frequent response is "what's the difference?"

Theater

 * In Hamlet, the title character gives a speech in which he calls death "The undiscovered country from whose bourn / No traveler returns" in spite of the fact that he's spoken with the ghost of his father.
 * Well, a good part of Hamlet's indecision and inaction stems from his questioning whether he genuinely saw a ghost or had a vision, rather than just hallucinating or being misled. The fact that he believes that "no traveler returns" from the afterlife would definitely contribute to his doubt of the ghost's reality, so he may well escape this trope.
 * The problem with this is that the ghost was seen by at least four other people -- Barnardo, Francisco, and Marcellus and Horatio before Hamlet ever encounters it, which strongly suggests against the hallucination theory, and Horatio is not only Hamlet's dearest friend but a rational scholar.
 * More obviously, there's the popular conception that ghosts never did go to "the undiscovered country" -- they're only sticking around because there's Unfinished Business, and they don't return when they cross over. Dying and becoming a ghost would thus not be representative of what death and the afterlife are like.
 * To confuse the matter, Old Hamlet explicitly states that he is "Doom'd for a certain term to walk the night, / And for the day confined to fast in fires". He's either in Hell or Purgatory, but Hamlet forgets when he monologues about his own fear of death.
 * Which makes this yet another example of Shakespeare introducing Protestant vs. Catholic theology into his plays. If the Catholics were right, there is a Purgatory, and ghosts exist -- those dead but not in either Heaven or Hell, allowed to wander and deal with Unfinished Business (usually at night or between certain hours, according the folk Catholicism of the 1600s). If the Protestants (including the Church of England) were right, there is no such place as Purgatory, and the dead go immediately to the afterlife. The so-called ghost could be his father's dead spirit, in the religion of Denmark at the time. Or, in the religion of England and Wittenberg (where Hamlet had been living), it could be a demon with the purpose of tempting Hamlet junior into the combined sin of regicide and avunculicide.

Tabletop Games

 * A few Dungeons and Dragons settings have examples of this:
 * In the Forgotten Realms, there are still atheists. This is despite the fact that gods regularly take physical forms and rampage around the country side, and that new gods rise while others die in every decade. Really, the existence of gods would be no more questionable then that of President Obama... Incidentally, there's a Fate Worse Than Death reserved for Atheists (and those who, ironically, decide to worship the Overgod Ao).
 * Or if they believe in the existence of the gods in general but doesn't choose a specific patron deity. Or their patron deity happens to be dead. Or if this patron deity rejects the worshiper for whatever reason. The fate in question: One's soul is strapped to the Wall of the Faithless and slowly digested by it over the course of millennia.
 * In the new edition, an entire continent as well as two countries has been brought over from a world where gods haven't existed for about 30,000 years, so anyone from there might have a justification.
 * In The World of Greyhawk, Oerth, the native clergy of the Flanaess is opposed by the so-called Skeptics movement established primarily in the County and Duchy of Urnst. The more extreme members of the movement believe that the gods of Oerth are pure fiction and that their clerics are frauds, with clerical magic not granted by divine sources but coming from within like arcane magic or psionics. The more moderate Skeptics admit the existence of beings called gods, but they claim that these gods did not actually create Oerth and furthermore many of them started out as mortals who ascended to demigod status and later to godhood. Therefore the Skeptics deny these gods their faith. They're little more than a fringe group, and the one time a Skeptic gained political power, it turned out to be a disaster--one of the previous Dukes of Urnst drastically raised church taxes when he took the throne, caused a series of riots in the nation's capital, and ended up dying when no cleric would heal him after he was wounded in battle with mountain raiders.
 * Since Planescape is a Clap Your Hands If You Believe setting, this is common; although the Athar tend to be more Nay Theist than this, there are others who are not. (The fact that the Powers, while existing, aren't necessarily the prime movers and shakers of the setting helps.) There is also an adventure involving killing a god by inducing Flat Earth Atheism: A Mind Control device that you could use to give a suggestion to the entire population of a prime-material plane that their God did not exist... Which would make that belief come true.
 * In Ravenloft, atheism is common in Lamordia, a domain where mad-scientist-style skepticism prevails. In other domains, heretical philosophers sometimes speculate that divine magic is actually derived from the Dark Powers, rather than the gods it's commonly attributed to; however, as most ordinary people have never even heard of the DPs, theirs remains a minority opinion. (Out of character, it's left up to the DM to choose.)
 * In a metagame example, a minority of Ravenloft game masters opt to assume that there are no "Dark Powers" in their individual campaigns, and phenomena such as the Mists, curses and Powers checks are simply a byproduct of innate metaphysical laws that operate within the setting.
 * The Eberron setting avoids this trope entirely. Divine Magic is the product of faith, Arcane Magic is just a force of the world. Someone with the proper training could have divine magic if he believed enough. It's even possible for clerics to turn from their religion and keep their spells. In fact, some mortals (and undead) have set up faiths centered around them, and their clerics get divine magic. Gods do not take physical form (except for one, The Traveler, and even then it's more the stuff of myth, like in ancient Greece). There are miracles which could be the work of the gods, but that is open to interpretation. In the setting, the actual existence of gods is up to a character's belief, as the gods do not act as proactively as they do in the Forgotten Realms, for example. Fiends are the original occupants of the material plane, and their religious implications are downplayed. Angels and Devils are just Outsiders. There are even some books that suggest the gods are based on the legends of certain Dragons.
 * One AD&D sourcebook introduced a demon who feeds on the souls of atheists. The book acknowledged that this is difficult in a setting where Gods are manifestly real. The tactic of the demon in question is to grant magical powers to someone, allow a cult to grow, and then withdraw those powers. The cultists become disillusioned and believe their leader a charlatan, at which point they are "vulnerable" to atheism.
 * A couple of different 3.5E sourcebooks introduce a prestige class called "Ur-Priest", which grants divine spellcasting ability to atheists by stealing the spells the gods grant to their clerics. Can you say "Irony"?
 * Ur-Priests are usually presented more as Nay Theists, though.
 * In Warhammer 40000, the Emperor of Mankind wanted to eliminate all religious beliefs from the Imperium and make mankind trust in science and logic. However, it's heavily implied that the Emperor was more than aware that actual daemons existed, but was trying to starve them, essentially. All was going swimmingly until some of his sons sided with the aforementioned, very real, Chaos Gods and started a galactic-wide rebellion. The cosmic irony is that after these events the Emperor became the official divinity of the Imperium, and it seems he is now forced to work by his faithful people to save mankind from extinction...
 * The Tau also qualify -- they believe in the power of logic and science, and refuse to believe in the idea of the truly supernatural, even after repeated battles with Chaos, the Eldar, and the Sisters of Battle. Bear in mind that these races employ, respectively, daemons and humans mutated by the Dark Gods (and sometimes both in the same creatures), living avatars of a war god present as figures of molten iron carrying a giant sword and an ever-bleeding hand, and what can only be described as divine magic to the point of one of their heroines self-resurrecting and having a few beings tantamount to angels.
 * There are alternative explanations (they're wrong, but that doesn't mean they don't exist). Mutant humans could have been physically modified like Space Marines, some forms of daemon could be aliens with teleport gear, and Soulstorm shows the Tau hunting for the technology behind the Battle Sister acts of faith (needless to say, without finding it).
 * This seems to be less that the Tau don't believe in things like Chaos and psykers and more that they're unfamiliar with them. Being inherently less psionic than humans, there are no Tau psykers, so they've never had any experience with things like daemons. They aren't disbelievers, they're outright ignorant. Hence the short story where a Tau army believes they slew Slaanesh -- they had no idea about the existence of Chaos Space Marines at the time, so they were unaware that Slaanesh was the name of that band's patron deity as opposed to their commander. It's this ignorance that makes them so dangerous in the eyes of the Imperium; they consider the Tau Too Dumb to Live.
 * In Warhammer, the citizens of the Empire (no, not that Empire) largely refuse to acknowledge the existence of the Skaven, a race of maniacal subterranean ratmen. Clearly in a world populated by Dragons, Giants, Lizardmen, the living dead, and goat-headed mutants, five-foot-tall intelligent bipedal rats are just too much. All this after the Skaven have openly attacked the Empire (mostly Middenland) a number of times, and just recently have tried to NUKE Middenheim, Middenland's capital.
 * According to some sources, the problem is not of their existence, but the idea that they have their own civilization instead of being just another form of mutant beastman.
 * The Skaven myth is one of the more dubious points of the setting -- there are supposed to be more Skaven than humans, they like to abduct cattle and/or humans for slaves and chow, they've fought several wars and they're openly acknowledged by the elves and dwarves allied to the Empire as well as some other human nations directly at the Empire's borders.
 * The RPG sourcebook about the Skaven tried to make some sense of it and summed its report up with the words "There are two myths about the Skaven: The first is that they don't exist. The second is that anyone believes in the first."
 * I believe the common consensus about the Skaven from the Empire's top minds is that they're just another form of Beastman. This is helped by the fact that anyone who shows signs of figuring out the truth tends to suffer a sudden and lethal case of rat-ninjas.
 * Newest update to the fluff finally gave an explanation. The Skaven cast and maintain a charm that actively keeps people from believing in them unless they see it with their own eyes.
 * It is explained in a Gotrek and Felix novel. The government thinks the population would not be able to handle Chaos at the north, Beastmen in the woods, cultists in their midst, and an empire spanning their borders laying beneath them. So the Empire hides the fact from the citizens so they don't panic ever time they see a sewer drain.
 * You also got Necoho the Doubter, the chaos god of... atheism... (Worship makes him weaker.)
 * The Palladium RPG Beyond The Supernatural featured Nega-Psychics, whose unbelief was so strong it actually (if ironically) disrupts any magic or psionics around them. In Rifts, however, where it's kind of hard to disbelieve a dragon staring you in the face, it became more of a matter of defiance.
 * Similarly, GURPS has the Mundane advantage, which at its highest level will enforce dull normality around its owner by turning werewolves and aliens into guys in rubber masks and magic into cheap fireworks.
 * The same thing appears in Unknown Armies. There is an NPC whose skepticism is so strong, he has an antimagic aura. Which, in turn, makes any attempt to prove the existence of the Unnatural to him impossible.
 * And in Over the Edge with Evan Mac Donald, whose skepticism is so great he nullifies anything beyond the mundane around him, be it magic or "just" mad science. In one sample adventure the world is conquered by necromancy, leaving everyone helpless to resist -- but Mac Donald is still walking around in a bubble of normal reality.

Video Games
""The gods don't do a damn thing. Do they even exist? How could anyone tell? Daedra Lords, sure. They exist. They do things. Bad things, mostly, but things you can see. The gods? They don't do a damn thing. So why do we build big chapels and sit around and mumble, and ask them to save us from this and that? It's stupid. And chapels and priests and folks grovelling on their knees, they're stupid, too.""
 * Patches the Hyena from Demons Souls could be considered this. He claims that "praying never killed demons for [him]," when you can directly call down miracles -- including "God's Wrath" -- at will.
 * Of course,
 * Planescape: Torment has the NPC Fall-From-Grace who, in a world brimming with gods and monsters and other such things, is agnostic. She's the party cleric. She's also a chaste succubus and proprietress of a brothel that doesn't involve sex. It's that kind of game.
 * Note that Planescape, as mentioned above, is a Clap Your Hands If You Believe setting, where belief literally shapes reality (and clerical magic is just one form of reality-shaping). Grace draws her power from the Sensate Philosophy.
 * In Metal Gear Solid 2, Ocelot loudly decries the existence of the supernatural, despite the fact that he used to work with an Ax Crazy floating psychic, a shaman with flying tattoos, an arguable vampire who could pin people to their shadows, a ridiculously old man who only comes to life in battle and can communicate with forest spirits, a man who could shoot bees, and a ghost; once manipulated an elaborate chain of events involving two (arguably three) non-floating psychics; and is routinely being possessed by a ghost living in Ocelot's transplanted arm. However, this line was added by the translator; in the original Japanese, he only says that technology can replicate the supernatural.
 * In Metal Gear Solid 4, however, and as specified in the database,
 * That being said, The Sorrow did genuinely possess paranormal powers. This is proven simply because nanomachines hadn't been invented in his time.
 * To be fair, only Naked Snake/Big Boss had any interaction with The Sorrow. It could have been All Just a Dream.
 * There happens to be an antitheist in Black and White. None of the godly power you throw at him can persuade him. But that's all right, tossing him about is quite amusing.
 * What's rather interesting to note is that he was a significant source of belief anyway, if used properly; while he claimed not to believe in you, you could pick him up anywhere he was -- even if he was outside of your control, which is something you can't do for anything else in the game, except for your creature. He also extended a small radius of influence around him, so in effect, he was a believer, he just didn't like you.
 * While not God, in the 3rd Ace Attorney, Edgeworth's disbelief in Spirit Channeling is odd, seeing as how he has sat across from a dead women (who he prosecuted the murder of!) in court...
 * It's possible this is less honest skepticism and more a kind of willful denial, due to the role that spirit channeling played in the DL-6 trial. It's easier to believe that spirit channeling is fraud than to accept that
 * The 08 version of Prince of Persia featured a protagonist who didn't believe in either of the two gods, despite all the demons he fights and seeing one of said gods try to escape from his prison. When you see inky blackness spilling into the sky and corrupting the planet, and then deny that your antagonist is real, you're just being thickheaded.
 * In Uncharted 2: Among Thieves . Really, Elena, really?
 * This can be justified. Unless the vast majority of all artifacts she's come across in her life have been supernatural, it only makes sense to assume that this one isn't until she's seen proof that it is. In short: just because she's witnessed supernatural events, that hardly makes EVERYTHING supernatural.
 * Later on
 * In World of Warcraft, Gnome characters are limited to classes that practice mundane martial arts (warriors and rogues) or arcane magic (magi and warlocks). The reason? They are a race of primarily atheists who can't play any class that requires faith in a higher power, such as the Light or nature spirits. Despite living with and fighting alongside priests, paladins, druids, and the like.
 * Times change; the third expansion will be adding gnome priests to the game, around the same time an ancient subterranean dragon tries to end the world. No word yet on whether the attempted apocalypse is spurring them to religion, or if they just grow to understand the inherent recuperative opportunities and cultural stabilisation afforded by a community-focused spiritual observation and calibration organisation. Could be the Gnomes even adopt science itself as their faith--the world might be ending, but science will save us!
 * Their "conversion" actually started in the previous expansion, Wrath of the Lich King. Before the invasion of Northrend, the gnomes were pure science and logic, and though they knew about the Light and other higher powers they preferred to belief in their own ingenuity and were unaware of the history of their race. That is, until the discovery of Mecha-gnomes, the Curse of Flesh created by the Old Gods, and the revelation that they were created by the Titans as clockwork beings who were then made organic by the Curse. Basically, "I saw the sign, and it opened up my eyes". The gnomes have begun to open up more towards higher powers, including the Light, and now we have Gnome Priests.
 * According the the C Deve Q&A most gnome priests are doctors and medics who believe that the healing powers of the Holy Light are just another science they can use to their advantage.
 * Gannayev from Mask of the Betrayer adamantly refuses to believe that gods exist and has been known to get into massive bitchfights with the priests of Kelemvor over it (one of which you get to jump into. We suggest you don't try to prove Gann wrong, if you value your relationship-related stat boosts). He persists in this delusion even after he meets not one but two gods in person (or switches to Nay-Theism, he doesn't claify which).
 * To be fair, Gann seems to think they are simply very powerful spirits, in line with Okku, the so-called Bear God who freely admits he's just a powerful spirit.
 * The player character in The Elder Scrolls III Morrowind ends up as a sort of atheist god: NPCs think you're a god, but you seem unconvinced.
 * The Dwemer fit this as a species of Flat Earth Atheists. They acknowledged the existence of powerful beings such as the Daedra, but either did not accept them as gods or did not consider godhood to be that important. It's not an unreasonable stance to take in truth, since this is a universe where it's possible to ascend to godhood simply by being badass enough to convince the universe you are one.
 * One Dwemer tale tells of a Dwemer who tricks Azura with a box containing a mirror. After she correctly guesses what the box holds, he opens the box and the mirror makes it appear as if the box was empty, 'proving' she is fallible and so not a god. He dies that night, a smile on his face. Of course, the Dunmer tell a different story: Azura sees through the tricks and strikes him down there and then... I prefer the Dwemer version.
 * Didn't she see a reflection of herself or anything else?
 * It's an old magic trick, the mirror is at an angle ergo when you look in the walls of the box are reflected and look like the other sides walls and flaw, so it looks like the box are empty.
 * In the sequel, Oblivion, Ilsi God-Hater appears to be this at first.


 * There's also Ulene Hlervu, castle mage to Count Indarys of Cheydinhal. She scoffs at the practice of worshiping the Nine, stating that worshipping Daedra is more reasonable, though still foolish, because it produces dramatic results.
 * The plot for the tenth Touhou game, Mountain of Faith, involves a god attempting to collect the faith of everyone in Gensokyo because she believed the dwindling faith its inhabitants had in its deities would cause massive chaos (that said faith would be an enourmous boost to her power was apparently just a bonus). Considering gods in Gensokyo not only have human-like forms but regulary chat with humans and Youkai alike (or pelt them with danmaku, whichever seems more fun), either its inhabitants are this trope or don't find it necessary to have faith in beings that are readily defeated by a Cute Witch and a Miko or are Nay Theist.
 * Ghostbusters again! By the time of the Video Game, the events of the two films -- including two massive ghostly uprisings in New York, a God of Destruction in the form of a marshmallow mascot attacking the city, the Museum of Natural History being engulfed by goo, and the Statue of Liberty taking a stroll through Manhattan -- mean that everyone believes the Ghostbusters are the real thing... except Obstructive Bureaucrat Walter Peck, who continues to believe they're nothing but dangerous frauds pulling an impossibly elaborate hoax.
 * In Star Ocean, after you've visited the king of Van and been told the legend of the Demon World, Iria and Ronixis (your two teammates who are from a scientifically advanced Earth) have a private talk about gods and demons and superstition, and why they shouldn't just accept the supernatural elements of planet Roak and instead look for logical explanations. This flies in the face of the fact that Iria can shoot energy from her hands, while Ronixis has put aside his starship captain comission to become a powerful Heraldric mage who calls down lightning and fire on his foes.
 * The original Guild Wars campaign (Prophecies) has a wonderful moment where an NPC rants about how she doesn't believe in any Gods after your latest mission goes awry. This is a bit ridiculous, since she's standing next to a person who can revive the dead using the power of faith and lives in a world where praying at a shrine will grant you improved skills. Mind you, since the plot of that campaign can be summed up as: "Oh hey, you just made everything worse! Again!" it may be safe to assume that the Gods are helping you just so that they can point and laugh when you fail.
 * In Guild Wars 2, each race has a view on the gods : while only the humans believe in them, the other races are not atheist per se : the Asura simply consider the gods as part of the Eternal Alchemy, like everything else ; the Charr were so scarred by the Shamans that they decide to not revere the gods, but do not deny their existence ; the Norn simply have their own deities in the Spirits of the Wild. As for the Sylvari, since they only appeared a few decades ago, i.e. 1300 years after the Gods left Tyria, they just want evidence, making them the closest example of this trope, considering that, y'know, humans will apparently be able to summon Hounds of Balthazar and stuff like that.
 * Of course, the Sylvari have the inate ability to bring huge trees to life, so they aren't completely unreasonable in wanting proof those hounds come from a higher power.
 * In Quest for Glory IV, Dr. Cranium does not believe in magic, insisting that any claims are merely the result of superstition and that everything can be explained by science. The game even suggests that there's probably magic involved in the healing potions he makes for you, but advises you not to point that out to him.
 * In Dungeons and Dragons: Order of the Griffon, the heroes are hired by Lord Korrigan of Radlebb Keep to investigate and debunk the rumors of the vampire Koriszegy in the ruins of Koriszegy Keep. He insists that the vampire is a myth and he's only hiring you to debunk the rumors to end the panic. He does tell you that you might meet some minor undead like skeletons and zombies, maybe a ghoul or something. Needless to say, Koriszegy is quite real, and quite dangerous: he nearly succeeds in destroying Karameikos. Somewhat justified by the fact that it's an established fact of the setting that the Thyatian rulers of what used to be Traladara, now Karameikos, tend to hold their Traladaran subjects in contempt as superstitious and ignorant.
 * The Pretentious Artist from Kingdom of Loathing is one of these. You only find this out if you show up at his place decked out in all of the Bad Moon rewards, and he states that he isn't sure whether he believes in Hey Deze, "even though people go there all the time and bring back souvenirs."
 * Dr. Aleister Grout, the Malkavian Primogen from Vampire: The Masquerade Bloodlines firmly believes there's a rational explanation for the fact that he's a vampire and all the obviously supernatural things they can do. It's somewhat implied that this is actually the manifestation of his Malkavian insanity.

Webcomics

 * In Order of the Stick, Girard reveals himself to be an odd case of this. A powerful illusionist himself, he derides Soon's piety, referring to the zodiac-based gods as "a glorified petting zoo", despite the fact that clerics and paladins can use divine magic to cast spells even the most powerful arcane spellcasters would have difficulty replicating.
 * This is probably just Girard insulting Soon's gods out of personal animosity rather than being a declaration of atheism; after all,
 * In this Saturday Morning Breakfast Cereal comic, we see God accomodating this kind of person in Heaven.
 * There are also shades of this at work in atheist hell.
 * Tycho of Penny Arcade maintains his atheism despite regularly hanging out with Jesus.
 * In Ozy and Millie, an ambassador sent to Greater Llewellynland to discuss foreign policy with Llewellyn, a dragon. Said ambassidor refused to believe in dragons. Hence, he mostly hung around the castle and annoyed Ozy.
 * In a Shortpacked! strip, a transformer claims to be an atheist. This wouldn't be a problem, except they live on their planet-sized creator.
 * This is actually based on Jetfire's personality in the comics. It's a long-running implicit joke that he believes in some odd kind of evolution which is obviously ridiculous (although the levers-and-pulleys thing was actually canon at one point). The above comic is not exaggerating.
 * The fact that he was made by a very intelligent designer (Shockwave) in the Marvel comics makes this even funnier.
 * Likewise, Dreadmoon of the Insecticomics is an atheist and skeptic. Somehow he manages to reconcile this with the fact that his commander has an immortal spark, people can and have been brought back from the dead, and they have done battle against the powerful minions of a chaos god who is the closest thing Transformers have to the Devil.
 * And now they're doing battle against the chaos god himself. This does not seem to have caused any crises of faith.
 * Leslie insists that there was no historical Jesus even after Galasso, who had been proven to have the ability, brings him back from the dead, despite the fact that his teachings, appearance, and demeanor all line up with euhemerist study of the Bible rather than modern Christian caricatures, getting so frustrated with her cognitive dissonance that she physically attacks him.
 * Cleric from 8-Bit Theatre. In his line of work he can't afford to show favorites.
 * According to a recent strip the gods like this attitude since they know he isn't trying to suck up to them.
 * There's also a Running Gag with Thief believing dragons are extinct despite encountering (and getting mauled by) them several times.
 * In The Last Days of Foxhound, Psycho Mantis, who is a psychic, refuses to believe in ghosts. Lampshaded in the last 3 panels here.
 * Making this even funnier is the fact that in Metal Gear Solid 4
 * Exterminatus Now: After getting chewed out by Virus for trying to arrest a Dagohma's Witness, Eastwood reveals that he does not believe in gods, demons, or the supernatural, despite personally witnessing the existence of such as part of his job. "It's easy. All it takes is a little faith."
 * Technically he just said he didn't believe in the gods, didn't say anything about the demons or angels they deal with regularly.
 * If he doesn't believe in the Chaos Gods, he cannot be tempted by them, which is a sterling quality for an Inquisitor.
 * In Sluggy Freelance Kent refuses to believe in vampires even after seeing several for himself. It's later theorized, however, that Kent does realize vampires are real, but admitting that would also mean admitting he was wrong. Ain't no way that's gonna happen.
 * Dibunquer in Bruno the Bandit, somewhat modelled after James Randi. He debunks everything in a world that is obviously full of magic, though he also represents a sensible sceptical viewpoint sometimes. Eventually he realises the truth, which is that magic does work in the world except when he destroys it by making people disbelieve it, but that doesn't ultimately deter his sceptical ways any. He eventually disbelieves a manifestation of Ailix to His face, but still comes across as more reasonable than the pope, who first gets the inspiration to start revering rubber duckies (Ailix got summoned in the middle of a bath, and the pope fixates on what He happens to have on Him at the time instead of what He's saying) and then gets all "sceptical" himself when Ailix asks him to change his ostentatious ways. Can you tell it's a Satire yet?

Web Original
"In most fantasy worlds, because "the gods are real", there's one set of myths which are only myths in that they're mythic in scope... they're essentially true and everybody knows them and agrees on them, and if there's any dissent it's a big story point because either the dissenters are eeeeeevillll or they're secretly the good guys. Even if the elves have one set of myths and the dwarves have another, it's only because they have different gods and their myths only deal with their corner of the world. With everything else they fight about, you rarely see the dwarves and elves falling out because one believes the world was made from the bones of Fireaxe Grimbeer and the other thinks it was fashioned in seven days by Emostar Vaguelygay, because those gods are real in the story and therefore not subject to this kind of disagreement. I don't really buy the logic there. Our world is made of real and we can't often agree on any two things inside it. Ignoring the possibility of any actual divine/supernatural stuff existing in our world, all of our conflicting myths and legends came about because of real, (at one time) verifiable events: wars, people, seasons, animals, whatever. Adding another class or two of things to those lists wouldn't change the essential nature of the beast, which is that 1) we like to make stuff up when we don't know something and 2) we frequently don't know shit."
 * The Spider Cliff Mysteries: Eliza, and to a lesser extent Barlow.
 * 1/0 featured the character Marcus, who became so angry at the comic's creator Tailsteak that he willingly acquired a fourth wall -- an inability to hear Tailsteak, see the comic's layout, have real-world knowledge, basically to realise in any way he was a character in a comic. Marcus remained stolidly convinced he was the Only Sane Man despite Tailsteak's continuous creation of life, inventing laws of physics, and generally interfering with the comic's world in an obvious fashion. Ironically, to rationalise all the ghosts and golems and such, Marcus eventually had to create his own increasingly-convoluted religion. Eventually, he reaches such levels of Strawman Political (very clearly representing atheism, agnosticism, pantheism, and polytheism at various points) that Petitus chews out the Christian author for his Anvilicious Author Tract.
 * Roger, the main character of Go Fish, is a great example of this trope. Despite being recruited to be a god's contact on Earth, meeting various gods and angels, and actually visiting the realm where the gods live, he still identifies himself as an atheist in a recent comic.
 * The mechans of Tales of MU are proponents of the scientific method in a world where trying to quantify or manipulate the properties of magic can result in new species of undead, horrible magic artifacts, or the ruination of entire countrysides.
 * Tales of MU also has a god, Arkhanos, who encourages their followers to not be 100% sure of said deity's (or any other deity's) godhood. Or gender, for that matter. Arkhanites like to point out that while divine magic works and gods have made well-documented appearances, it's possible that they're simply much better at magic than "mortals".
 * The best example of this is Steff, who is a follower of both Mechanism and and Arkhanism despite being in a relationship with both a half-demon and a semi-divine harvest spirit who regularly converses with her creator deity.
 * It should also be noted that the MUniverse contains multiple religions, each with its own distinct (and in some cases conflicting) mythology/theology, all of which are apparently real. So it's fairly easy to see how people might get confused. To quote the author:

"44. I am not the atheist chaplain."
 * In Metamor Keep Metamor's High Priestess, Raven hin'Elric believes the "gods" she regularly converses with and draws power from are really just entities with a lot of magic.
 * By the time of Metamor City she seems to have been proven right.
 * Skippys List has examples:

Western Animation
"Villager: Can your precious science explain why it rains?
 * In Re Boot, Fax Modem denies the existence of "the User". He accounts for the various catastrophes attributed to it as a mass hallucination engineered by the authorities to keep the population in line.
 * In The Simpsons, although God and Jesus Christ have been shown to exist, and Homer has had numerous run-ins with the Almighty, he's still able in the episode "HOM-R" to construct a mathematical proof of God's nonexistence while trying to devise a flat tax proposal. This is of course just another of the many times where the show openly ignores continuity for the sake of a quick joke.
 * Of course, since he has an IQ of 105, it's likely the proof is not valid, but it's upsetting enough that Ned Flanders can take one look and think it is.
 * Ironically Ned Flanders as well. Set 30 years in the future Ned remarried Maude's ghost. She explains to him there is no heaven, just an empty void. All Ned does is chuckle and ask the Simpsons, "ain't she pretty?"
 * In the South Park episode "Cartmanland", Kyle loses faith in God. This is despite the fact that the boys have met Jesus and Satan in the past. In one episode, they even meet God itself. Although, it could be that he just believes that God doesn't care, as opposed to God doesn't exist. Never mind that he is Jewish, while knowing that Jesus exists and has holy powers. Also, it is South Park.
 * Additionally, Mohammed, Buddha and Joseph Smith also exist and have superpowers. They Fight Crime! There was an episode where people talked about Joseph Smith and Mormonism and Stan found it ridiculous to believe, despite the fact that he had witnessed Joseph Smith's powers in said episode.
 * The real God is, for lack of a better description, a bunyip.
 * And he's also a Buddhist. Who only lets Mormons into Heaven. South Park is odd like that...
 * Do not forget the episode where Satan hosts a huge Halloween party on Earth (marking at least his third public appearance on the surface). The episodes immediately following? A 2-part story arc all about how Richard Dawkins and Mrs. Garrison turned the entire planet into straw atheists. Also applicable is the time most of the boys' parents became atheists and celebrate over the fact that the Vatican was destroyed, despite the fact that it was destroyed through supernatural means and a giant Queen Spider is clearly present.
 * Mandy is rendered immune to the Tooth Fairy's powers by revealing, to his face, that she doesn't believe in him.
 * Brian of Family Guy is a professed atheist despite the fact that God and Jesus are frequently seen in Quahog and the former once smited the family with Exodus-like plagues. However, it is Family Guy. And he is an Author Avatar.
 * What's interesting is in the episode "If I'm Dyin', I'm Lyin'" Brian is the one who points out the plagues to Peter and then slaps him declaring that the reason things are happening is "God...is...pissed!"
 * Not to mention in the "Surfin' Bird" episode, Jesus had dinner at the Griffin household, among other interactions.
 * This reached its height of ridiculousness when Jesus showed up at the Griffin house again just to tell them that all religions are crap. Brian then gloated that he'd been proven right... because Jesus said so.
 * Albeit it's only in the second episode of Avatar: The Last Airbender, one wonders how Sokka can express such skepticism as Katara states that the Avatar reincarnates through the four nations, when Sokka's new best friend is the Avatar.
 * To be fair, in a world where people can control elements, believing in a person born with the power to control all 4 is fairly easy, but believing that he or she is the reincarnation of the previous guy is another thing. Regardlessly, he quits doubting the existence of spirits once he actually spends time in the spirit world and goes from denial to flat out not caring.
 * Then there's "The Swamp" where he refuses to believe anything mystical was going on to the point of giving Aang's quite demonstrable magic experience an "Avatar stuff" grandfather clause. It gets a tad more odd in later episodes, where he openly (and vehemently) shows his disbelief in the many "magical" occurances the gAang runs into, such as psychics, benevolent spirits (The Painted Lady), and other oddities. While one could remain a skeptic, it's funny how he outright disbelieves, despite hanging out with the Avatar (and his aformentioned journey to the spirit world).
 * It's also worth noting that though Sokka tends to be always proven wrong, Aunt Wu was shown to be completely right and the Painted Lady was shown to be real, though Sokka's science and observation helped saved the day in both cases. This was heavily lampshaded.

Sokka: YES!"

"Bruce: These people believe anything they can't explain is magic.
 * Doc Saturday from The Secret Saturdays actively disbelieves in magic despite being married to someone who uses magic (and wields a magical fire sword), having a son with supernatural powers, and continually doing battle against things like evil alternate reality doppelgangers, killer salt monsters, and an evil Large Ham out to conquer the world by unleashing a mythical god of evil.
 * In an episode of Spongebob SquarePants, Squidward says he doesn't belive in ghosts (or more specifically the Flying Dutchman), which is odd considering the Flying Dutchman appeared to the entire town in the Halloween episode and Squidward was zapped over and over and tortured by the Flying Dutchman in another episode.
 * To be fair though, Spongebob has almost no continuity worth mentioning.
 * Another Batman example comes from the Batman Beyond episode "Revenant". An invisible force is terrorizing the school, which Terry's friends think is a ghost. This conversation ensues:

Terry: Naturally, you don't believe in that kind of thing.

Bruce: Of course I do: I've seen it all. Demons, witch boys, immortals, zombies. But this thing... I don't know. It just feels so...high school."


 * Chip 'n Dale Rescue Rangers: Despite having met genies, leprechauns, ghosts, witches, and so forth, Gadget Hackwrench insists there's no such thing as magic. Of course, this usually only happens in episodes where there isn't any supernatural phenomenon but you're meant to think there is. When magic really is going on, she usually keeps her opinions on the matter to herself.
 * Twilight Sparkle of My Little Pony Friendship Is Magic comes off this way on occasion, refusing to believe in anything supernatural despite living in a land of magic. Her friends are quick to point out that she can do magic, so what's the difference, and she usually has an answer for why magic is real and something like a curse is not.
 * Twilight is a believer in Magic A Is Magic A, even though this is manifestly not how magic actually works in Equestria.
 * Kid Flash in Young Justice. Mind you, he's perfectly okay with pocket dimensions and Mind Control existing, he just thinks everything has to have a scientific explanation behind it.
 * Daria claims not to believe in God and the supernatural in the fourth season episode Groped by an Angel. This despite the fact that in the previous season she met the Anthropomorphic Personifications of various holidays (though they did at least have the excuse of coming from a Pocket Dimension a la The Mighty Thor). There's also the fact that according to the Beavis and Butthead episode It's a Miserable Life God and guardian angels really do exist, but Daria herself wouldn't have any way of knowing this.

Other
"Satan: Lord God, it is my turn now.
 * Pick any Christmas movie or Christmas Special in which Santa Claus is real and actively delivers presents to a large fraction of the world's children, yet the vast majority of adults do not believe in him. Let me review the situation: Mysterious packages show up under Christmas trees that Mom and Dad certainly don't remember buying. Little Sally in the hovel next door ends up with an expensive doll in her stocking despite her parents barely being able to afford necessities and keeping the doors locked for fear of burglars. Yet despite these otherwise inexplicable occurrences, people dismiss Santa as a fairy tale or "stuff for babies."
 * Worse, in the Christmas movies/specials where Santa Claus not only exists, but doesn't even actually hide his existence -- to the point where you'd easily be able to see the man just by waiting outside on Christmas Eve, or even by telephoning the North Pole.
 * Taken to hilarious extremes, for the sake of a joke, in one Rankin-Bass movie in which a young atheist mouse says he doesn't believe in Santa...despite Santa having a phone number and a staff of people to answer any calls. When he says this, the athe-mouse's dad gives him a look that is the 70's animated special equivalent of "Wow you're a spectacular retard". Mind you, this is a world where Santa is so clearly and explicitly real that when he tells the town's mayor he won't come here this year due to the athe-mouse insulting him in a newspaper (yes...) the mayor attempts to build a huge beacon to tell Santa how much they're really, really sorry. In other words, Santa is at least as real as any other businessman the town is trying to curry favor with. And the mouse kid still didn't believe it till his father showed him everyone else in town did. The irony? Athe-mouse is the SMART one in his family (by his reckoning). Yikes.
 * But when trying to convince athe-mouse, his dad uses arguments similar to theists, trying to make his son have faith in things in which there is no empirical proof (the song "Give Your Heart a Try,") despite the fact that there is empirical proof of Santa in this universe. It's even stupider in The Year Without a Santa Claus when a bunch of children announce that the newspapers have reported that Santa Claus is a taking a day off and ten seconds later say that they don't believe in Santa. Santa himself sings a song to convince one of the children of his existence: "I believe in Santa Claus / Like I believe in love..." not "I believe in Santa Claus / Because I saw his picture in The New York Times..."
 * The same would apply to the Easter Bunny and the Tooth Fairy, where they also actively deliver presents to children.
 * This article explains just why one would be a Flat Earth Atheist, using the example of the DC Universe.
 * Sometimes, Pentecostal Christians tend to see Cessationist Christians more or less like this.
 * Among the more conservative branches of various religions, one is likely to find people who consider all atheists (and optionally, all adherents of other religions) Flat Earth Atheists who fail to see the obvious truth of their own religion, or else NayTheists who have seen the truth but pathologically deny it.
 * The closest real-life equivalent would probably be people who refuse to believe certain scientific theories (e.g., quantum mechanics) for philosophical reasons or simply because they're too weird to believe.
 * Of course, the big reason why quantum mechanics seem so weird is that it keeps getting explained by people who don't actually have any idea what they're talking about. Much of the modern technology wouldn't work without quantum effects, and there are even cases where quantum mechanics make physics less weird (for example, black holes).
 * An old Soviet joke runs something like this: A communist (and thus staunch atheist) died. However, he had been a good man in life, and God was willing to forget his unbelief, provided that he spent an equal period of time in Hell and Heaven. He served his first year in Hell, and Satan said to God: "Take this man quickly - he has turned all my demons into Young Pioneers! I must restore order!" After spending a year in Heaven, God took him back to Hell, where he had this conversation with Satan:

God: First of all, don't call me Lord God but rather "Comrade God". Second, there is no God, and third, hurry up or I'll be late for the Party meeting."


 * You could argue that for anything (not just religion) being too skeptical of one thing will turn you into this. Even if you show them what would be considered by most to be sufficient proof, they will deny it and go with a theory that (YMMV depending on who you ask) is even more crazy/less believable then the thing you are putting forth to them.
 * Of course, particularly stubborn people will take their denial to these levels rather than admit they are wrong. We've probably all done this at one point or another.