Heel Realization

""It is such a quiet thing, to fall. But far more terrible is to admit it.""

- Kreia, Knights of the Old Republic II

Few things are more crushing than realizing that you're one of the bad guys. You exclaim "My God What Have I Done?" and perhaps shed Tears of Remorse. Or in some cases, you realise you're even worse than you thought you were. Either way, it's the moment you know you're in the wrong.

It may lead to The Atoner, a Redemption Quest, or Redemption Equals Death, or, if the author is feeling particularly vindictive, to Heel Face Door Slam. Conversely, may turn a Well Intentioned Extremist Necessarily Evil, or force them to admit that there is No Place for Me There. There's also the possibility to ignore the realization. Sometimes these people were just working for someone who turned out to be doing horrible things. A common form is to Kick the Wrong Dog and/or Being Evil Sucks.

Common when The Dark Side Will Make You Forget or when Big Brother Is Employing You.

Compare Nice Job Breaking It Hero and Unwitting Pawn. Contrast with Knight Templar (who never realizes he's a villain) and Card Carrying Villain (who never thinks he's a good guy in first place). Also see Tomato in The Mirror, when one of the good guys realises he was a sleeper agent all the time.

For the opposite, see You Are Better Than You Think You Are where the character fails to see they are nobler than they give themselves credit for.

Anime and Manga

 * Magical Project S, Misao Amano is shocked to find out she is Pixy Misa (the evil magical girl that has tortured practically every main character, including her parents and her best friend). While it was initially thought her evil side was due to brainwashing, it was in fact her repressed self, despite having no memory of her actions.
 * Some of the later episodes of Tengen Toppa Gurren Lagann, particularly 23:.
 * A strong case of Wrong Genre Savvy- had he been in a Gundam series (or given the situation so far, a show like Evangelion) he'd have been the "right" one.
 * More a case of Values Dissonance between the two shows.
 * Happened in several arcs in Higurashi no Naku Koro Ni, with varying results.
 * Of note is the Heartwarming Moments in Tsumihoroboshi-hen when Keiichi Cue Keiichi hugging Mion. D'AWW.
 * Ken of Digimon Adventure 02 realizes that the Digital World is not a video game with good cruelty potential, that the Digimon are alive and sentient, and that sadistically torturing them as an Evil Overlord is in fact bad. He undergoes a Heel Face Turn soon after... if you can say he was a Heel to begin with. He honestly didn't know what he was doing until later in the arc, at which point he went into Dark Spore aided denial.
 * Yamaki in Digimon Tamers has a particularly nasty one when he realizes that
 * Before them, three out of the four human antagonists of V-Tamer 01 quit after this realization. The one that doesn't is told You Have Outlived Your Usefulness and thus quits before it.
 * In the final episode of Planetes,.
 * When a scrappy entrepreneur from The Old Country shows up, Claire (who was raised and educated in the USA since the age of eight and become a Workaholic ladder-climber) finds him annoying at first, until he reveals that his life's history is very similar to hers, at least before he went back to El Tanika to aid them with his education. Ultimately, this guilt bomb only serves to send her into a bit of a death spiral.
 * In Code Geass, Suzaku had one in R2, right as he was about to use Refrain on Kallen to get her to admit who Zero was. In his mind, this makes him just like the Geass-using Lelouch. Never mind that he'd sworn fealty to a man who he knows to also use Geass and is much worse about it than Lelouch. He has an even bigger one when he realizes the futility of trying to value means above results when he accidentally nukes the Tokyo settlement.
 * Lelouch has one in the first season after he's forced to Shoot the Dog . Although upset over his actions, Lelouch realizes he's gone too far to turn back.
 * In Berserk, Griffith is made to realize at the Eclipse that rather than being the beloved leader that everyone thinks he is (including himself at times), he is an ambitious man who will do anything to realize his dream and uses people to that end, even into death on the battlefield. It's his spite for Guts' being the one person he couldn't control that sends him over the mother of all Moral Event Horizons.
 * from Twentieth Century Boys realizes that he's been manipulated by Friend into doing evil when he.
 * Also hilariously averted by Yanbo and Mabo: they never realized they were bullies to start with, and yet they manage to  without noticing.
 * Suzumiya Haruhi in Sigh, when she finally gets called out by Kyon on her treatment of Mikuru. Directly after this is one of her biggest Pet the Dog moments, and she becomes much nicer after this. Made more obvious in the anime rendition, where she looks away from Kyon as he calls her out and it's clear that she's at the verge of tears.
 * In the 11th book,  has one of these.
 * In Ga Rei Zero, Yomi realizes what kind of monstrosity she is after she crippled Kiri physically and mentally. Actually she realizes this multiple times, but the Sesshouseki robs her of clarity of mind and fills her with rage and despair.
 * In Tegami Bachi, Sara has this realization after seeing the memories from the Shindan Lag used to finish off the Gaichuu. They had pretended to be part of the anti-government faction Reverse (with Hunt presented as the "Man Who Could Not Become Spirit" to prevent people from mistreating him because of the monster arms sewn onto him), and while keeping up that act, decided to prevent letters from coming to Honey Waters. A man took it upon himself to deliver the letters, but was attacked by the Gaichuu, lost his heart and died. After realizing that their lie caused his death, Sara turns over all the money they received to the villagers, and sets out with Hunt to start anew.
 * In Kurogane no Linebarrel, after Kouichi Hayase's selfish use of Linebarrel gets one of his friends killed, he realizes he's been a Designated Hero and resolves to be a proper good guy.
 * A major theme of the Black Moon Clan in Sailor Moon.
 * Fullmetal Alchemist. Most of these moments are in flashbacks, as soldiers in Ishval realize they're acting as Punch Clock Villains and become The Atoners we know and love. In the timeframe of the story itself,.
 * In Mobile Fighter G Gundam, both Master Asia and Dr. Mikamura get them. For Master Asia, it was the fact that humanity was a part of the Earth as nature was and wiping them all out wouldn't solve a thing. For Dr. Mikamura, it was the realization that his own jealousy towards Dr. Kasshu lead them to the point where his own daughter was now the core of the Devil Gundam. Both of them suffer Tear Jerker-worthy Redemption Equals Death moments to atone.
 * In Turn a Gundam, Queen of the Moon Dianna Soreil learns that her policies, past antics and army have actually caused quite a bit of suffering both on Earth and on the Moon for years and allowed maniacs like Gym Ghingham to sieze ludicrous amounts of power. This turns her into The Atoner and causes her to undertake massive changes in policy upon regaining power.
 * The comedy series Daily Lives of High School Boys, surprisingly, has a few examples.
 * Played for Laughs: This trope is the entire point of High School Boys and Panties — peeping at a girl's panties does not make a guy feel good, but guilty and depressed... especially when you tricked a Ditz into unwittingly flaunting her panties. Motoharu slipped into a Heroic BSOD so hard he skipped school for three days.
 * Played for Drama:
 * Played for Drama:
 * The final climax of the 2003 version of Astro Boy. For the entire series, Dr. Tenma had been trying to guide Astro so that he would eventually become the most powerful robot in the world, able to rule over all humanity. However, all this time, Astro had been fighting for peaceful man-machine coexistence. So in their final conflict, Tenma and Astro meet in the abandoned Laboratory 7, . What finally ended the battle wasn't strength of arms at all, but Astro

Comic Books

 * In Y the Last Man, one of the characters mentioned that she had been working for a long time to try and make the post-Gendercide world a little easier to deal with--It turns out she had been flooding the entire Pacific community with heroin, but figured that it really was not a bad thing since the entire world is circling the drain, and this is just letting people have a bit of happiness before humanity goes extinct. However, the fact of Yorick's existence, which means that extinction is not a guarantee, changed her perception of her role - she's not The Hero, he is, and she's just one of the baddies. Things do not go so well for her after that.
 * The Superman nemesis Manchester Black thought of himself as a "realist", operating as an anti-hero (i.e. killing without remorse). He perceived Superman's boy-scout morality to be a facade bordering on stupidity. In an attempt to give Superman One Bad Day, he created a telepathic illusion of Lois Lane being murdered to provoke a homicidal response out of Superman. When it failed, and he saw the depth of Superman's dedication, Black realized that he had been a villain who had been lying to himself all along, and there was such a thing as a Good Guy. He then promptly killed himself. Sort of. Poor little Vera.
 * The titular character in issue 1 of the Transformers comic book mini-series Megatron: Origin. However, he concluded that it was the only path he had to walk, turning him into the universe-conquering Decepticon we know and love.
 * Magneto has one of these in Uncanny X-Men #150, after he almost kills Kitty Pryde with an electric shock. He's so disturbed by it that he actually reforms (and stays reformed for a hundred and twenty-five issues), and eventually becomes the headmaster of Xavier's school.
 * This is basically what ended the Marvel Comics Civil War. After the final battle causes lots of destruction calls in the rescue workers and he notices civilians begging to him not to kill Iron Man, Captain America realizes that he's putting innocent people in physical danger by his actions and country wants and has basically become one of the villains he usually fights against. Unwilling to become an Anti Hero and force his ideals on the public he promptly orders his side to stand down.
 * In the Marvel The Siege story arc,.
 * The Sentry's case throughout Dark Reign (and even before) might also count, as he was constantly in doubt of his actions - 'course, the Void may be to blame for the most part, but let's not forget that Bob Reynolds himself is an extremely neurotic and superpowered individual. As he said in the first mission of the Dark Avengers, after ripping off Morgan's head: "What did I do? Was it good or bad?"
 * Enemy Ace, a series about an honorable German pilot flying in World War One, had a more recent series where the same pilot, now a gray-haired veteran, flew in World War Two. He was much unhappier about this war. At some point he got shot down and parachuted to safety near Dachau, saw one of the death camps, and underwent a textbook Heel Realization, even telling those under his command that they were fighting for the devil himself. He told them that he would no longer protect the Third Reich, and that he planned to fly to the nearest Allied airbase and surrender, giving them his undamaged fighter, then help them in any way he could.
 * Of all people, Superboy Prime seems uh, primed, for one of these in Blackest Night. Then again, he has been looking at his monstrous actions from a different perspective  over and over again for months on end.
 * Happens twice in the Iron Man Armour Wars saga, once at the beginning when he realises his technology may have been responsible for some of the worst criminals in the Marvel Universe,
 * Nite Owl II in Watchmen finally begins to understand the potentially harmful social effects of superheroes during the Keene Riot.
 * This is played with in an issue of Nemesis the Warlock. The villain calls himself Torquemada, and in many ways models himself on the Spanish inquisitor of the same name. They meet through time travel, and the villain explains to the inquisitor what his philosophy has led to. It's the inquisitor who's horrified.
 * In Elf Quest, Knight Templar Rayek suffers a massive and acute Heel Realization just as he's about to kill all of the Wolfriders (for the greater good, he thinks). It's triggered when he meets his daughter Venka for the first time, who was trained her whole life to stop him. She refuses to, telling him that it has to be his own choice.
 * In Scott Pilgrim, the entire point of is to get Scott to recognize his own faults as a person and to understand that he's played a part in the failures of his past relationships rather than just blaming others.
 * Paradoxically, inverted in The Flash, after one of Flash's friends accuses Flash of not using the full extent of his abilities to help people. The friend then realizes the best way to make the Flash a better hero is to become a villain who'd push him to be one.

Fan Works

 * has one in Dragon Age: The Crown of Thorns and it's bad enough that he Let's just say those weren't the best few months of his life.
 * is a sort of aversion because he knows what he's doing is wrong from the get go. Still, his finally has him putting it into words, but it's far, far too late by then, or so he thinks.  It's just a very small point in his favor that  Needless to say,
 * In Team 8, Sakura overhears Naruto warning Lee about the fact that she is actually not a nice person to anyone other than Sasuke, and realizes, after some thought, that he is correct.
 * In the Babylon 5/MassEffect Crossover Fic The Babylon Effect Matriarch Benezia decides to stop at Beta Durani to have a little talk with a caputured Minbari Shai Alyt on the way to a Peace Mission to Minbar. After pointing out that the Minbari had killed an Asari Matriarch during an earlier battle during the war and that, by the Minbari's logic, the Asari had every right to exterminate them, among other things. The Shai Alyt has a combination of this and a Oh Crap moment realizing that there are only two ways their war with the Terran Systems Alliance will end; either they make peace with them, or the Citadel Council will crush them like a grape.

Film
""Why did I do it? Am I a good man or a bad man?""
 * A pretty funny example from Machete. One of the Mooks has an epiphany, telling his coworkers that "I've been watching the boss, and the boss is a real scumbag." That same Mook, when confronted by Machete shortly thereafter, promptly quits his job and gives Machete his gun.
 * In The Elephant Man, Dr. Treves is shaken by the Head Nurse's observation that the arrangement he set up for John Merrick, which include receiving respectable callers, means he is still being treated as a freak on display, albeit in a high class cushy style.

"Bill Foster: I'm the bad guy?
 * James Norrington of the Pirates of the Caribbean films realized only too late what side he was on in allying himself with Beckett, and promptly sought to make amends.
 * Undercover news reporter Babe Bennett has one in Mr. Deeds when she finds herself falling in love with Deeds after lying to him in order to gather information to slander him with.
 * Falling Down with Michael Douglas has this exchange near the end, after the Villain Protagonist Ubermensch is confronted by the retiring detective (well, sergeant)

Sergeant Prendergast: Yeah.

Bill Foster: How did that happen?"

""My God. I've heard a rant like this before... You sound like the Morning Star... You sound like Lucifer, man! You've fucking lost it! You are not talking about going home, Bartleby, you are talking fucking war on God! Well fuck that! I've seen what happens to the proud when they try to take on the throne... I'm going back to Winsconsin.""
 * In American Beauty, the middle-aged protagonist spends the majority of the movie fantasizing about a slutty teenager, and even starts working out to impress her. But when he finally gets a chance to fulfill the fantasy, he realizes that statutory rape laws are there for a reason: He opts to be a Chaste Hero, not that it helps much.
 * The Operative in Serenity has one of these once he realizes just what the supposed "utopia" that he has been committing horrible acts to create would actually look like.
 * Jim Carrey has an excellent one in Liar Liar. Since he is magically compelled to tell the truth, what he thinks is a rant on his child-raising techniques opens with him saying "I'm a bad father!" His expression indicates that this is perhaps the first time he has admitted that to himself.
 * Subverted in the Bill Paxton film Frailty:
 * Hostel Part 2 plays it both ways. Two brothers are in town to enjoy the "products" of the Murder Inc.
 * The final part of Pulp Fiction involves Jules explaining to a mugger that he has come to realize this, and he explains that before he had his epiphany, he would have gunned down the muggers without hesitation, but now he understands how bad a man he's been right before he lets the muggers go.
 * Boxer in Southland Tales realizes in his last scene that he's . He doesn't really seem to take it all that badly, even though he knows it means.
 * Nicholas, in The Last King of Scotland, realizes only too late whom he has been assisting for years, and in what.
 * Cass has one of these at the end of The Gamers: Dorkness Rising. Given that The Gamers and Dead Gentlemen in general is known for broad farce, pulling off such a vulnerable moment without Mood Whiplash is actually a small triumph.
 * In The Fox and The Hound, the Big Bad has one at the end when Copper prevents him from shooting Tod, despite the fact that Tod saved both their lives only two minutes earlier.
 * The expression on Captain Ramsey's face when the EAM is read looks like this.
 * "I fight for the users!"
 * Sybok from Star Trek V the Final Frontier is devastated when he finds out that "God" is actually a malevolent alien entity, making his hijacking of Captain Kirk's ship worthless and potentially fatal.
 * In Twelve Angry Men, when, in the middle of explaining his 'Guilty' vote, sees ... and figures out why he really was voting the way he was.
 * A mild case with  in Mystery Team after Kelly chews him out for trash mouthing.
 * The audience has one of these in Attack of the Clones; there is a scene at the end where troops ships are taking off from Coruscant to fight in the Clone Wars--the music playing in the background is The Imperial March. The audience realizes that for the past hour or so, they've been Rooting for The Empire.
 * "I will not die a monster!", exclaimed Doc Ock after his realization.
 * Jack's realisation in The Nightmare Before Christmas crystallises in the song "Poor Jack".
 * Cars 2 has Mater having a dream where he sees his activities over the past few days and finally realizes what an embarrassing jackass he's been to Lightning McQueen.
 * Bjarnfredarson is all about this finally happening to the titular character, who failed to realise this over three whole series of comedy.
 * In Dogma, Loki has a moment like this when he hears Bartleby claim that God unfairly favours humans over angels and that therefore they are entitled to kill a bunch of them if that means they get to return to Heaven.

Literature
"What Skorzeny didn't get and wouldn't get if he lived to be a hundred - not likely, considering how the SS man lived - was that what we were supposed to do and what our superiors ordered us to do weren't necessarily the same thing.
 * Ian Hunter of The Unicorn Chronicles spends the first book, plus a great deal of flashback, being on the side of his great-great-and so on- grandmother, who is trying to destroy luster and the unicorns, all to 'rescue' his daughter. Upon finding her, she yells at him for hurting her friends, and after he gets dumped in the middle of nowhere, he realizes that Beloved is a monster and he's been on the wrong side for the past ten or so years.
 * A halfway one from The Secret River: Thornhill says that he is "not a bad man", but is doing "something only the worst of men could do"
 * In Terry Pratchett's Witches Abroad, ruled with an iron fist in order to make fairy stories come true (up to and including imprisoning a toymaker who serially failed to whistle as he worked) and didn't realise that this made her the bad one until her final confrontation with her sister.
 * She goes to her still insisting she's the good one, but Granny's insistence otherwise has rattled her somewhat. Granny, though, has on multiple occasions made a point of saying that only people who don't know better can actually be bad; if you know the difference between right and wrong, you can't choose wrong.
 * Subverted in Wyrd Sisters when Granny Weatherwax forces the monstrous queen of Lancre to see her True Self. Instead of repenting, the queen declares that given the chance to start over she would've done everything the same, only harder. Which would make the above point "if know the difference... and are sane..."
 * In the book Wicked, Elphaba is Genre Savvy enough to eventually pick up on her Wicked Witch role.
 * Sir Apropos of Nothing has a variation: he's not the villain, but instead he's the weird side character to someone else's journey. Then in The Woad to Wuin, when he wakes up from a coma, he realizes what "he's" done while he was "sleeping" and is scared out of his wits. When he realizes the same force that controlled him then makes him indestructible... well, he falls into the evil well face-first.
 * Though he'd been dangling just over the abyss to begin with, really. Kind of a self-serving-but-not-completely-evil-bastard/heel turn.
 * I hereby term that change the Jerkface Heel Turn!
 * Lale fights this with all her might for awhile in The Assassins of Tamurin, until the crimes she realizes "Mother" has committed get personal.
 * This is the source of the title of I Am Legend..
 * In Harry Turtledove's Alternate History World War series, this happens to Panzer Commander of the Wehrmacht Heinrich Jäger when an old Jewish man shows him the bullet hole in his neck and tells him the story of how he got it. Heinrich had heard the rumors before then, but he hadn't believed in them. The third book sums it up nicely:

Soldiers didn't commonly had to make that distinction. Jäger hadn't worried about it, not until he had found out how the Germans dealt with Jews in the east. Since then, he hadn't been able to look away. He knew what sort of disaster awaited the world if the Lizards won the war. Like Skorzeny, he was willing to do just about anything to keep that from happening. Unlike the SS man, he wasn't willing to believe that everything he did was fine and virtuous.

That made for another subtle distinction, but he clung to it."

""He had made me, if not an accomplice, at least an eyewitness to his vengeance! Even this was intolerable.""
 * Another Turtledove book late in his Timeline-191 series features a character who has become a guard at what is basically Auschwitz in the extermination of American Southern blacks, and considers himself doing vital work for the safety of his country. When he eventually realizes, basically through the simple decency of one of the prisoners, that blacks are * people*, he is overcome at the evil he has been helping enact and kills himself.
 * This is especially poignant, as earlier in the series the character somewhat identified with blacks (though in a way that only made him dislike them more). He himself was of Mexican descent, and commented more than once that in the eyes of most Confederates, he was at most only one step away from blacks.
 * In Ayn Rand's Atlas Shrugged, James Taggart is helping to torture, and admits the latter's refusal to cry out is making him upset. When he realizes the significance of this, that he wants the man to be tortured to death -- even though Taggart knows that the only one that can keep Taggart alive as civilization collapses, it dawns on him that he himself is total evil. At this point, he goes insane.
 * Reverend Hale in The Crucible has one of these and spends the rest of the play trying to make amends - by encouraging victims of the witch-hunt to confess and live rather than die for continuing to deny witchcraft.
 * In Dan Abnett's Gaunts Ghosts novel Traitor General,, his memory partially recovered, regards himself as deeply injured by his treatment at the hands of the Imperial forces. However, as he recovers, he realizes that he had forgot his acts that inspired it, and that he deserves to die. (Which is more than he realized, with all his memories, at the end of Necropolis.)
 * Atonement gives one to Briony, the narrator, upon the realization that her actions sent an innocent man to prison.
 * In Ben Counter's Warhammer 40000 Horus Heresy novel Galaxy In Flames, after set out to lure  to their deaths,  points out to  that he has doubt in his eyes -- which doesn't keep him from killing him, but he sobs afterwards and speaks of how they had been their brothers.  thinks he needs to be watched.
 * In Graham McNeill's Fulgrim, Fulgrim realizes how great his betrayal is when he is fighting
 * While we're on this, Sarpedon of the Soul Drinkers (another Ben Counter work) comes to the terrifying realisation at the end of Soul Drinker, upon finding out that his Chapter have essentially become Chaos Marines (although, had it not been for Chaos mind-befuddling, the mutations would have provided a pretty damn big clue). Having realised this, Sarpedon hauls himself and his Chapter back from the brink of Chaos just in time, and kills the Daemon responsible.
 * In James Swallow's Warhammer 40000 novel Deus Sanguinius, Sachiel comes into  rooms when forbidden, and realizes the man is working for Chaos, and so Sachiel and everyone else has been Chaos-tainted. (Nothing Laser Guided Amnesia can't fix, though.) During the single combat between Rafen and Arkio, he realizes it again, and this time   murders him.
 * In the novelization of the Magic the Gathering story Urza's Saga, we have the Knight Templar archangel Radiant, whose last words are the startled "I'm the mad one!"
 * Star Wars novel examples:
 * In Allegiance, a stormtrooper refuses to fire on unarmed civilians, deliberately shooting to miss. Later he thinks back on how much he looked up to the Empire as a kid, when it came down on the Space Pirates who used to raid his homeworld, and how he joined the stormtrooper corps and served for ten years because it meant making that same kind of difference. But the Empire itself seemed to sour - there was that time he and the other stormtroopers forced a town to stand out in the pouring rain while their identities were checked and rechecked, there was that fanatical obsession with finding and killing Rebels which let other problems go unchecked, there was the promotion of murderers like Tarkin, there were things like the Imperial Security Bureau, and of course there was Alderaan. After sort of accidentally killing an ISB officer, he and his True Companions steal a ship and go on the run, and end up helping people and finding that Good Feels Good as they try to figure out what to do. But they don't stop being stormtroopers, and they don't join the Rebellion.
 * Word of God, and supposedly the upcoming novel "Choices", holds that these stormtroopers eventually get kidnapped by Thrawn and end up in his offshoot, the Empire of the Hand. The Empire of the Hand, judging by Survivors Quest and the short story Fool's Bargain, is apparently exactly what the stormtroopers used to think that the Empire was. Given that both of those feature stormtroopers who think for themselves and can make moral decisions, it's not surprising.
 * They end up forming a sort-of vigilante group that hunts down pirates and ends up helping Mara Jade expose corruption within the Empire. They called themselves the Hand of Judgment until Mara Jade saved them from getting killed for treason, then told them that there was only one Hand in the Empire, and it was her, the Emperor's Hand. They lost the name, but haven't quit hunting lawbreakers yet.
 * Death Star has most of its viewpoint characters, all of them on the Death Star, realize this either slowly or after Alderaan.
 * A Christmas Carol is essentially one long heel realization by Scrooge.
 * This is the central point in the The Wave, where a teacher wants to show his class how Nazi Germany came to be... and it all goes horribly right as they really begin to resemble Nazis. Various people have their Heel Realizations throughout the book,
 * Jack McBride in Torch of Freedom, comes to the conclusion halfway through the book that promoting slavery and plotting to take over the known galaxy is bad
 * In other examples from the Harrington-verse, Alfredo Yu realizes what kind of sociopaths the Masadans he's been ordered to assist really are and wants nothing more to do with it (nor evidently do a good portion of his fellow Havenite crew). This eventually becomes a recurring theme with other Havenite characters until their second revolution and the overthrow of the Pierre dictatorship.
 * Pyotr Fursenko from the Dale Brown novel Warrior Class serves as the lead aerospace engineer for the Big Bad Pavel Kazakov. Detached from the atrocities by his distance from the fighting, the evil of his boss finally sinks in when he acts as Guy in Back on a bombing run
 * In John C Wright's The Golden Transcedence, Gannis realizes that while he is technically not guilty of any crimes, his behavior has been petty, underhanded, deceitful, and disloyal, and he will be -- quite justly -- shunned for it.
 * In George Bernard Shaw's play Saint Joan, after Joan of Arc is captured, the English chaplain John de Stogumber pushes relentlessly for burning her at the stake; when he actually sees it done, he literally goes insane with remorse.
 * In Harry Potter, this happened to after the death of his sister.
 * Ditto on
 * Also happened to after.
 * Valjean in Les Misérables had his Heel Realization after unthinkingly robbing a small child, right after Bishop Myriel had given him everything he'd owned, which got him to start taking his oath to the bishop seriously, and, well... you know the rest. Much later, Javert has his own Heel Realization when he sees Valjean's honest intent to save Marius shortly after having himself been spared by him, and realizes that the world isn't as black-and-white as he'd meant to believe; he doesn't take it as well.
 * Twenty Thousand Leagues Under the Sea: Wide Eyed Idealist The Professor Aronnax is truly happy to travel in the Nautilus making submarine research, but after he witness Captain Nemo crossing the Moral Event Horizon, Aronnax realizes the true price of his travels with Captain Nemo:


 * In Death: There is this one lawyer in Ceremony In Death who defends one of the Satanic cult leaders that Eve is trying to take down. This lawyer happens to be a cult member himself. When Eve shows crime scene photos of a murdered cult member, the cult leader acts all "Meh", and the lawyer can only sit there and stare at the photos. Eve pretty much tips him off that she knows about his involvement and that he should think long and hard about what to do next. Later, when the lawyer is by himself, he ends up experiencing a Heel Realization, where he realizes that ever since he joined the cult he's been having blackouts...and in one of those blackouts, the cult member in the photos was murdered in a sacrifice! Who knows what else happened in those blackouts? He ends realizing that he is in big trouble, and decides to pull a Heel Face Turn...only to get murdered shortly afterwards.
 * "The Garden Party" by Katherine Mansfield is about the main character, Laura, having one of these and realizing how unbelievably shallow her life is.
 * Mrs Granger in Frindle, after overreacting to a student's creative attempt to invent a new word, is Genre Savvy enough to realize that her actions have placed her in the role of the villain and uses this status to help the new word along.
 * Sisterhood series by Fern Michaels: Roland Sullivan in Lethal Justice apparently experienced this after Alexis Thorne was sent to prison. The good news is that it left him pretty wrecked up. The bad news is that it was an Ignored Epiphany for him.
 * Till We Have Faces spends its second half working towards this, with Queen Orual gaining revelation after revelation that complicates her perceptions of herself.
 * The eponymous Harry Dresden of the Dresden Files has this a few times:
 * Has one of these that he confesses to the avatar of his consciousness when ., his consciousness points out that Harry really doesn't have a choice, and that taking the high road means everyone dies. He then pointed out that Harry has the capacity to do good with the evil he agreed to working with. Later, on the same note, Harry and Michael discuss this somewhat.
 * Then,  has one of these.
 * Later, when Harry, he realizes what his decisions in the previous book did to his friends, especially Molly.
 * In one of the Iron Warriors short stories, the renegade Space Marine Ardaric Vaanes realises that yes, he's become a Traitor Marine. At first, however, he doesn't care.

Live-Action TV
"Iris: "I'm going to hell when I die. I know that. But if I am very fortunate, my brother will be there waiting for me with an embrace.""
 * The gang in Angel have kindof a Will They or Won't They relationship with this trope in season 5.
 * Iris Crowe in Carnivale, tells her foster-father Norman Balthus that she knows she's evil:

"Mitchell: Hans... are we the baddies?"
 * That Mitchell and Webb Look had a sketch involving a pair of Nazis starting to wonder if they were the bad guys: the were, after all, wearing black uniforms with skulls on them.

"Dean: (Chained up) What? You don't trust yourself?
 * In The Middleman episode "The Obsolescent Cryogenic Meltdown", Guy Goddard realizes that he's the villain when he finds himself saying the villainous Once an Episode Catch Phrase "My plan is sheer elegance in its simplicity."
 * Nicely played out in the Star Trek: Deep Space Nine episode "Waltz", although some fans feel it began Dukat's descent into a more simplistic villainy. Upon being asked by the hero to justify his occupation of Bajor, Dukat's calm rationalizations gradually give way to a rant about the Bajorans' lack of gratitude for his mercy, until he answers Sisko's sarcastic "you should have killed them all" with an excited "yes! Yes, that's right, isn't it? I knew it. I've always known it. I should have killed every last one of them. I should have turned their planet into a graveyard the likes of which the Galaxy has never seen! I should have killed them all." When he later makes his escape, he's dropped the claim of being a misunderstood hero that he'd always made before, and becomes an unapologetic, nihilistic villain for the rest of the series - one of the few examples where a character recognizes his villainy and actually embraces it.
 * This also doubles as a Nice Job Breaking It Hero given what Dukat would go on to do after Sisko basically goaded him into embracing his darkside.
 * Also occurs in the Original Series episode, "Changeling", for certain values of "hero" and "villain", as Kirk reveals to NOMAD that it has made an error. NOMAD realizes that it, too, is Faulty and Imperfect, and therefore must be Sterilized.
 * Also in "The Return of the Archons", again in the Original Series. Kirk must have studied Logical Judo in Starfleet.
 * 30 Rock, Liz goes to her high school reunion and finds out that the reason she was so unpopular in high school.
 * On Dollhouse, Mellie/November gives Ballard a creepy speech indicating (between the lines) that she's been programmed with low self-respect, and he responds with a dose of rough sex. The next morning she asks if he'll be looking for Dollhouse clients, and he mutters, "I found one."
 * Happens a couple of times in Quantum Leap.
 * In "Her Charm", Sam leaps into an FBI agent assigned to protect a woman who testified against a crime boss. His attempts to hide her should be successful, but fail when an informant in the agency keeps giving away her location to her pursuers. Sam groans in frustration when he learns that.
 * In "Last Dance Before an Execution", Sam leaps into a man in the electric chair who is given a 48-hour reprieve, seemingly to try to prove the innocence of the man he leaped into. But as it turns out,.
 * Richard Woolsey in the Stargate SG-1 episode "Inauguration", beginning his long journey to becoming one of the heroes and ultimately a regular on Stargate Atlantis.
 * And Harry Maybourne as well, from slimy weasel to convicted traitor to grudging ally to beloved king of an alien planet.
 * Tomin has one early in "The Ark of Truth". The Priors have a collective one after the Ark is opened.
 * Supernatural has an odd version in season five when Dean realizes where his current path leads after he's sent into the future and meets himself.
 * Supernatural has an odd version in season five when Dean realizes where his current path leads after he's sent into the future and meets himself.

Future!Dean: No. Absolutely not. (leaves)

Dean: What a dick."

""Jesse: I learned it in rehab. It's all about accepting who you really are. I accept who I am.
 * The moment at the end of season four after Sam has killed Lilith and Ruby revealed is Sam's moment when he realizes he's just an Unwitting Pawn who screwed up big time . His face during Ruby's triumphal and extremely ill-advised monologue conveys complete devastation. He's barely even paying attention when he and Dean subsequently kill Ruby.
 * In season seven, after getting Drunk On the Dark Side and Jumping Off the Slippery Slope,.
 * As The Wire winds to its conclusion, McNulty finally realizes that being a Cowboy Cop did not make him a hero after his plan to get more funding for the police via a fake serial killer story blows up in his face.
 * In Alias, the agents of SD-6 are not happy to learn they've been working for the enemy all along.
 * Third Season of Breaking Bad features Jessie realizing that he's 'the bad guy'

Walter: And who are you?

Jesse: I'm the bad guy."

" : "I saw the, what we have done throughout time and space. I saw the truth of us, creator, and I decreed: No! More!""
 * Doctor Who had a truly shocking one in "Journey's End", from a frigging   no less.

""I've taken lives. And I got worse, I got clever. Manipulated people into taking their own. Sometimes I think a Time Lord lives too long.""
 * The Doctor himself had one in "The Waters of Mars" after Adelaide Brooks calls him out on his megalomania regarding time itself. Ten's descent into madness, and then his realization at what he's done once  is painful to watch, but Tennant's performance remains nothing short of magnificent.

""You would make a good Dalek""
 * How about this one, from a Dalek to the Doctor!

"Sebastian: The city was drowning in decay, chaos, immorality. A message needed to be sent, etched in blood, for all the world to see: a warning. In the pursuit of my holy cause, I did things, terrible things, unspeakable things. The world condemned me, but it didn't matter, because I believed I was right and the world was wrong. I believed I was the divine messenger. I believed I was...
 * Sebastian the Vorlon Inquisitor in Babylon Five had such a realization about.

Sheridan: Chosen?

Sebastian: I was found by the Vorlons. They showed me the terrible depth of my mistake, my crimes, my presumption. I have done 400 years of penance in their service. A job for which they said I was ideally suited. Now, perhaps, they will finally let me die."


 * Also from Babylon Five, Zack Allan. He was originally enticed into joining Nightwatch because of the extra pay it offered, but as he noticed Nightwatch get more and more oppressive, he began to resent his decision. Still, he stayed in and simply strove to involve himself as little as possible. Finally, as Nightwatch tries to take over the station, he lets slip that a bunch of Narns are coming in to replace them. The leader of the local Nightwatch musters every hand possible to capture them.
 * Done rather nicely in I Carly with Nevel, who was as close to a Big Bad as the show got. After spending the series doing everything he could to destroy iCarly, he gets caught on video being his mean, Jerkass self to a little girl who'd accidentally bumped into him. Not only does this ruin his life, it shows him what he's really been like. He pretty much says My God What Have I Done and makes a token effort to change his ways. Ultimately, the iCarly gang help him do so and he performs a Heel Face Turn as a result.
 * The Big Bang Theory had an episode with two unrelated stories about this. One centered arounnd reuinion between Leonard and a former bully, during which time he began to realize how much he'd hurt Leonard . The other centered around  realizing that she used to be a bully and trying to overcome her guilt upon realizing how much she hurt her classmates.

Music
"I believed it would justify the means
 * Happens twice in Razia's Shadow by Forgive Durden. First, when . Second,.
 * The second half of David Bowie's "Cygnet Committee," wherein the second narrator first gleefully describes the violence he and his allies have turned to, but slowly sees it to be antithetical to his ideals.
 * "The Truth beneath the Rose" by Within Temptation seems to be about this.

It had a hold over me

Blinded to see

The cruelty of the beast

Here is the darkest side of me

(Forgive me my sins)

The veil of my dreams

Deceived all I have seen

Forgive me for what I have been."

"I'm not a monster, Tom
 * Bob has a small one in "Re: Your Brains" by Jonathan Coulton, which doesn't seem to effect him much.

Well, technically I am

I guess I am."

"Since I was no bigger than a weavil
 * Nick Cave and the Bad Seeds song "The Curse of Milhaven"

they've been saying I was evil

that if bad was a boot then I'd fit it

that I'm a wicked young lady,

but I've been trying hard lately

Oh fuck it! I'm a monster! I admit it!"

"When I was young, I was so full of fear
 * "I Was Wrong" by Social Distortion.

I hid behind anger, held back the tears

It was me against the world, I was sure that I'd win

But the world fought back, punished me for my sins

I felt so alone, so insecure

I blamed you instead, made sure I was heard

And they tried to warn me of my evil ways

But I couldn't hear what they had to say

I was wrong, self-destruction's got me again

I was wrong, I realise now that I was wrong"

"The dragon fell upon the ground
 * Happens in the middle of "Crusade" by Voltaire, after the narrator has slain one of the reportedly evil dragons he was crusading against.

'Twas then I heard a whimpering sound

A dragonling to his father clung

Who only fought to protect his young."

Religion

 * According to Christianity, acknowledging one's own "fallenness" is the first step to receiving salvation.
 * A specific example would be Saul, a notorious persecutor of the earliest Christians, who was knocked to the ground and struck blind by a vision of God on the way to Damascus ("Saul, Saul, why do you persecute Me?"). He converted within the week to Christianity and found his sight restored, and "the road to Damascus" would become a popular metaphor for the Heel Realization.
 * Older Than Feudalism in The Bible:
 * "Truly, this man was the son of God."
 * In the New Testament, when Judas Iscariot realizes that he's betrayed Jesus, he gives back the thirty pieces of silver, and hangs himself. (The other account for his death averts this trope.)
 * Another Biblical example -- David, though beloved of the Lord, was rebuked by the prophet Nathan when he had Uriah the Hittite put on the front lines so he would be killed, and David could take his wife Bethsheba for himself. Nathan tells him that the child Bethsheba was currently pregnant with would not live. Indeed, despite David fasting and clothing himself in sackcloth, the baby died after seven days. (And during this time, David wrote the powerfully penitent Psalm 51).

Tabletop Games

 * In Ravenloft, having a Heel Realization is the only way a darklord can escape his/her Ironic Hell realm. The sourcebook does note that people actually capable of having a Heel Realization would never have become darklords in the first place.

Theater

 * The stage version of Little Shop of Horrors climaxes when Seymour Krelborn realizes what he's aided and abetted for a little fame and a shot at the woman of his dreams. Confronting Audrey 2 he damns them both, "You're a monster, and so am I!"
 * Valjean and Javert in Les Misérables - see Literature, above, although the episodes with Petit Gervais and Marius are sometimes omitted, the realizations following directly from the Bishop's undeserved gift to Valjean and Valjean's decision to spare Javert. Here, with Javert having been upgraded from "recurring nuisance" to "deuteragonist," an explicit parallel is drawn, Javert having a solo that's a Dark Reprise of Valjean's.

Video Games
"God, look at me. This was supposed to be my quest for peace, and I've become addicted to destroying suns."
 * In Tales of Phantasia, the main characters' primary motivation the entire game long is avenging the slaughter of their hometown, but they go too far and they end up nearly dooming a planet because of it. There's a nice few minutes of angst (not quite enough, though) right after the Final Boss fight.
 * About two thirds of the way through Tales of Vesperia, the party (which has to this point skirted the line between heroism and villainy, Yuri in particular) has a plan to defeat the newly-arrived Man Behind the Man, but it will involve The crew considers this for a moment and decides they need to get the permission of the world's leaders for such an act   Oh yeah, and
 * In Valkyria Chronicles one of the Imperial generals, Yeager, realizes that even though he's fighting to liberate his own country, his participation in the invasion of Gallia makes him a hypocrite. Inspired by the zeal and dedication the Gallians show in defending their homeland, Yeager decides to abandon his post and leaves the Imperial army.
 * The page quote from Knights of the Old Republic II comes from a conversation between Kreia and Jedi Master Atris, during which Atris realizes that she had fallen to The Dark Side some time ago through her resentment of those she feels betrayed her. Atris subsequently embraces the role of Darth Traya, although the Jedi Exile has the opportunity to redeem her.
 * It's worth noting that Atris wasn't Darth Traya, or at least not the original Darth Traya. In the version of the game that shipped, which had quite a bit of story cut for time, Atris doesn't get a Sith name. The full story, including the bits that got cut, seems to be canonical, though. It's also hinted that Kreia went through the same realization sometime in her past, as well as Atton Rand, whose story you can find out more about.
 * And then there is the original KotOR, where at tho-thirds point in the game you learn that.
 * Devil Survivor has Well Intentioned Extremist, who only has this epiphany if made to realize they're Not So Different from the people they seek to punish:
 * White Knight Leo from Lunar 2: Eternal Blue is a Knight Templar who's really a Knight in Shining Armor at heart...which is why he flip-flops between Heel and Face. By the time he's mostly sided with Hiro, he's had to accept that  It's a tough pill to swallow.
 * Infocom's Leather Goddesses of Phobos:
 * Xenosaga has Canaan, who actually does this twice: first as Lactis during the cellphone game Pied Piper, then a hundred years later during Xenosaga III: Also Sprach Zarathustra as Canaan. Both times,
 * This "Let's Play" of Galactic Civilizations 2 was intended to be a peaceful attempt at attaining galactic superiority through advanced culture. Half way through comes the realization that something has gone terribly wrong:

"Eden: Perhaps...Perhaps there is a problem. I--I am unsure how to proceed."
 * At the end of Mass Effect, it's possible to talk This is approached somewhat differently than usual, as he's already figured out he's the bad guy, but thought it to be the only way for anyone to survive the Reaper invasion. The player's contribution is to get him to realize that that's the indoctrination talking.
 * Of course, anyone who has read the Mass Effect: Revelation prequel book will know that he was an asshole with an agenda even before his . He would abuse his status and openly lie to prevent Anderson from becoming the first human Spectre.
 * This is how the Talking the Monster To Death solution to the Big Bad works in the original Fallout. Once you prove to him that his plan could not work and the Utopia that would Justify The Means can't exist, he realizes that he's simply been doing evil and is Driven to Suicide by the revelation.
 * Also in Fallout New Vegas, Joshua Graham, co-founder of Caesar's Legion underwent this after his attempted execution. After he survived, he became a Mormon once again (albeit very militant) and rejoined his church.
 * One way of Talking the Monster To Death in Fallout 3 is to confront President Eden about his cricular thinking. You then tell him to self-destruct.


 * If you spare in Dragon Age: Origins and increase his approval, he will eventually go through one of these. His last words  make it clear that he knows his past actions are unforgivable, and all he wants is a chance to atone for them.
 * Cecil in Final Fantasy IV is loyal to his king at the start of the game, having been raised like a son by him. However, he draws the line when he's unwittingly used to burn down an entire village of innocent summoners. The next part of the game involves him trying to atone for the awful things he did as a Dark Knight in Baron's service.
 * In God of War III, Kratos goes through this due to a combination of The Reason You Suck Speeches given to him as well as developing a Morality Chain with Pandora, a girl statue given life who clings to hope in a world that Kratos is systematically destroying. By the end,
 * Throughout Persona 4,
 * Quite possibly the entire reason Raiden attempts to change history in Mortal Kombat 9, coupled with Shao Kahn's victory. His revival of Liu Kang is one of the key events shown in the flashback message he sends to his past self.
 * Inducing this in the game is how you win You Find Yourself In A Room. If you mention hatred or anger as emotions you will be better off without, the game realizes that it is not the superior emotionless being it thought, as it it is filled with hatred and anger. This drives it into a despair in which it simply lets you go, finding no more meaning in its tortures.
 * In Back to The Future: The Game, is hit with one of these in the fifth episode, after admitting that


 * In Devil May Cry, Trish is a demon sent to lure Dante to his doom. He shrugs off her attempts to take his life, and even goes so far as to save her from a falling column -- and then calls her a devil and tells her that he only spared her because she looks like his mother. Trish's stricken look at that moment speaks volumes.
 * In Asura's Wrath, Yasha spent the last 12,000 years going along with the plans of the same people who killed his sister and his brother-in-law, enslaved his niece, and regularly slaughter people for their souls. All for the sake of the "cause" -- preventing the complete destruction of humanity at the hands of the Gohma. He justified it by believing with all his might that it truly was the only way to save humanity in the long run. Confronting Asura again and seeing how much power he's attained without mass human sacrifice helps Yasha realize that Deus' plan isn't the only way to save the world. When Asura calls Yasha and the other Deities fools for killing seven trillion people as part of their plan to "save" the world, Yasha agrees.

Visual Novels

 * In Tsukihime, Akiha route, you can, at one point, kill Ciel, prompting Shiki to assume he IS a natural-born killer, after all, and give in to The Dark Side. Needless to say, it's a bad ending game over.
 * Part of Kohaku's route
 * Part of Kotomine's Backstory in Fate Stay Night is his realization that nice people do not enjoying watching others being tortured or that sort of thing. That's fundamentally why he can't actually become a Card Carrying Villain; he actually has a sense of morality. The end result can be considered an Ignored Epiphany but he did try. For years.
 * In Phoenix Wright: Ace Attorney, Miles Edgeworth starts to have "doubts" after you demonstrate two defendants to be innocent, but it's not until he's the defendant in in which he's innocent that he really decides that forging evidence to get every single defendant found guilty is a bad thing. Furthermore, he finds out that although he became a prosecutor because of, it turns out that
 * Also, in the fifth case, Edgeworth finds that He wasn't aware of it at the time, but it really came to bite him in the ass when people found it out and started to call him out on it. Even when they find out , he couldn't forgive himself for it...and it's implied that.
 * In Katawa Shoujo, in Act 4 of Shizune's route,.

Web Comics
"Axel: We've faced worse than this. Remember when Disneyworld was destroyed?
 * In Exiern, Tiffany hates Theresa for several bad reasons: They are both under a Gender Bender spell (and Theresa doesn't share Tiffany's whiny attitude about it), the guy Tiffany tries to tell herself she's not in love with seem interested in Theresa, and they (Tiffany & Theresa) are equally bigoted against each other's culture. After Denver give her the appropriate "What the Hell Hero", Tiffany finally realize what a bitch she has been to Theresa. See page illustration above.
 * Happens in Shades of Grey: the Well Intentioned Extremist angel dude after he meets two nice - but traumatized - demons and freaks out.
 * Subversion: Cale'anon of Looking for Group believes he has turned evil and tries to act accordingly, but really, he isn't made of the right (or wrong) stuff.
 * Parodied in Ansem Retort.

Marluxia: Larxene did that.

Axel: Well, what about that plane that got hijacked?

Marluxia: You hijacked that plane.

Axel: Okay, but there was that corrupt government.

Marluxia: That was, and still is Zexion.

Axel: Wow, we're assholes."

"Agatha: And I'm the evil mad girl with the death ray and the freakish ancestors -- and the town full of minions -- and the horde of Jagers -- and the homicidal castle full of sycophantic evil geniuses and fun-sized hunter-killer monster clanks and goodness knows what else-
 * Parodied in Girl Genius.

[beat]

Agatha: -And you know what? I can work with that!"

"Sarda: Well. Um. No. You're all selfish monsters who need to die for the good of everyone else."
 * In fact, multiply parodied: Baron Wulfenbach gets a few lovely moments too - mostly in the vein of knowing he's the "bad guy" and being all right with that.
 * At one point, Gil Wulfenbach goes into a huge rant about how he always tries to be a Nice Guy but all that does is make people think that he is weak and that they can take advantage of him, and so the only time he can make people listen to reason is by beating the crap out of them first. And then he realises, to his horror: "This must be how my father feels all the time! "
 * 8-Bit Theater example:

"''"I am facing facts," he repeated, softly. "My friend. Hard, hard facts." The two rulers looked at one another for a long moment. "My son is more of a man than I am. All my sons have been. And you always knew it. Did you not?"
 * Ironically, Sarda doesn't seem to realize or care that he is the one that enabled them to do so much damage in the first place. Stable time loops are delicious like that.
 * Though not a villain, The Japanese Beetle had a moment where he realized he's a creep, and set about trying to become a decent person and a real hero.
 * In Darths and Droids, the PCs have always been skirting the border between merely Off the Rails and Obliviously Evil, casually trashing the GM's carefully scripted story and messing things up far worse than they were originally. The GM loves to point this out to them, but it isn't until #454 that Pete finally gets it. Of course, his reaction subverts the trope: "So we're the bad guys now? Cool!"
 * Played a little more seriously in #571, where Anakin slaughters the younglings. Jim can no longer sympathize with Anakin, thinking him to be a Complete Monster.
 * And then that one also gets subverted (at least, on Jim's end) in #576. Apparently, Lawful Evil is OK.
 * Interesting about this one is that Anakin's character arc has been mirroring something similar in Annie's life, and realizing what Jim thinks of Anakin gives Annie a nasty shock when she realizes that somehow she's taken playing an increasingly evil character as a pass to be amoral in real life.
 * Parson arrives at this fairly quickly after arriving in Erfworld (what with his side having all the classic evil minions like dwagons, gobwins, twolls, and giant spidews), but gets chewed out by his new boss and told that the whole "Good Guys/ Bad Guys" concept is just stupid. Comes up again after the climax of the Battle of Gobwin Knob, when the full impact of his plans and actions (tens of thousands of Erfworlders are DEAD) hits Parson and he has to wonder how much he was influenced by the spell that summoned him and how much by his own free will and genuine desire to command a battle.
 * King Slately, too.

Don said nothing.

"You never would listen to me about Royal ideals," Slately said, frowning. "Honor, sacrifice, dignity, decorum, station...loyalty, bravery... You were too polite to me, Don. You couldn't simply say I was no Royal ideal myself."''"


 * In Dominic Deegan, after spending most of an arc in denial ("I am a good man!"), Bulgak finally realizes that he is "a selfish, damned fool."
 * It's Walky!: Sal's fall from grace has led her to retrieve an Amplifier Artifact which she is poised to use to destroy about 2/3rds of the world with. Walky brings her back from the brink by presenting her with her ex-boyfriend Danny, who is pretty much the only person she will still let herself care about. Her tough-girl persona collides with her desire for Danny to think well of her and she collapses into a crying heap in Danny's arms. Afterwards, she becomes The Atoner for the next few story arcs, resolving to willingly serve out her prison sentence despite her superpowers meaning she can escape whenever she wants.
 * Her Heel Realization is illustrated by having Sal's hair, which had fallen over her left eye and covered it during her entire Dark Action Girl phase to illustrate how she wasn't letting herself see everything going on around her, falling away from her face as she sees and recognizes Danny's presence.
 * In Endstone, when about to Mind Rape her Parental Substitute, Cole wonders why she is doing these terrible things -- for a panel.
 * Bobwhite, during a summer story arc, Cleo realizes, "I'm such a terrible employee that I made a child cry."
 * In Order of the Stick Varsuvius not too long ago made a Deal With the Devil or devils plural in this case and using her acquired power  at the time though she or he realized they'd done wrong, it wasn't till now just how wrong they had gone truly hit them.

Web Original

 * Steve in Kate Modern, when he realises his religion is actually a murderous cult, which he has been serving blindly.
 * Bobby Jacks in Survival of the Fittest, who realizes he's one of the bad guys very early on but then decides that now that he's killed somebody there's no going back. Lenny Priestly also arguably fits this, although he is less somber about it.
 * In v4, Reiko Ishida has one of these after
 * Cracked.com offers a helpful list of 5 Signs That You're The Villain In An Action Movie, including details like acknowledging one's own Red Right Hand and the possibility of being an Evil Brit.
 * The Escapist series Doraleous and Associates had an episode where the titular heroes-for-hire realized they were working for the bad guys. They immediately switched sides.
 * In this short video made for Christmas 2009, Jack Bauer begins to interrogate and torture Santa Claus. (Santa's flying over the US without a passport delivering mysterious packages, after all). With only a few sentences Santa makes Jack (who has just threatened to cut out Santa's eyes) realize that what he's doing is wrong. The video ends with an emotionally distraught Jack leaving the room and nearly having a breakdown in his car.
 * The original Dove was a vigilante crimefighter from the Global Guardians PBEM Universe who was active between 1989 and 1995. He considered himself a hero helping to defend ordinary people from street criminals. His usual modus operandi was to hunt any criminal whom he thought "got away with it"; that is, whenever he disagreed with a "not guilty" verdict. When captured, he was confronted with the fact that he wasn't a defender of the public, but rather just another serial killer and the idea horrified him to the point that he hung himself while awaiting trial.
 * Phase of the Whateley Universe is a fourteen-year-old who was kicked out of the richest family on the planet, the Goodkinds, when he turned into a mutant: the Goodkinds are notoriously anti-mutant, supporting the Knights of Purity and the semi-governmental Mutant Commission Office (MCO). Goodkinds, including the boy Phase used to be, have supported the MCO with billions of dollars over the years. Phase has defended the MCO to his new (mutant) friends at Whateley Academy, even though there are rumors that the MCO has kidnapped hundreds of young mutants who were never seen again. In "Ayla and the Grinch", Phase has to face the fact that the MCO really has been kidnapping, and "disappearing", young mutants, and he is partly responsible, since he helped fund the MCO.
 * Throughout Doctor Horribles Sing Along Blog, the titular Villain Protagonist has been a villain in name only, mouthing Well Intentioned Extremist slogans but too meek to actually do anything really bad. Then comes the challenge from the Evil League of Evil to which he aspires: commit a heinous crime or die. It's not until the very end, when his inability to pull the trigger on his Arch Enemy Captain Hammer has led directly to the death of, that he realizes that the murder will be attributed to him, and thus he is now a villain for real. His final song, "Everything You Ever", is a triumphant dirge simultaneously celebrating his ascenscion to true Evil and mourning the loss of his soul.
 * "Now the nightmare's real; now Dr. Horrible is here...."

Western Animation
"Brock: Are you okay, doc?
 * Played with thoroughly (perhaps enough to count as a deconstruction) in one episode of The Venture Brothers where Dr. Killinger, a villain adviser who previously made massive changes/improvements to both The Monarch's villain career and personal life, shows up to advise Dr Venture. Killinger saves Venture Industries and helps Venture face his numerous childhood issues, especially about his father, but at the end produces two papers, one of which would officially make Venture a Super Villain, the other would dismiss Killinger and the "Venchemen" that Killinger had assembled to be Venture's army of Mooks. The semi-sociopathic Venture eventually chooses not to become a villain, but is left deeply shaken by the whole encounter.

Dr. Venture: I... I don't know. He thinks I'm a... Brock, am I a bad person?

Brock: (pauses, then rocks his hand in a "kind of" gesture) Ehhhh....."

"Lex Luthor: "I could have made everyone see! If it wasn't for you, I could have saved the world!"
 * In the final regular episode of Daria, Daria has a painful flashback memory about a loud argument her parents had over her. At this, Daria is wracked with guilt that she had been an unfair burden to her parent when she thought she was being herself. However, her parents make it clear that as much as they tried to encourage a more social attitude from her, they also accepted that her loner and iconoclastic ways were worth the price to have a daughter who is admirably intelligent, perceptive and principled.
 * Adora in the She Ra Princess of Power Pilot Movie.
 * Judge Frollo has one of these at the beginning of the Disney adaptation of The Hunchback of Notre Dame, when the Archdeacon makes him realize that dropping a deformed baby down a well after killing its mother (in front of a cathedral, no less) might just damn his eternal soul to Hell. It lasts long enough for him to spare the child, but he doesn't seem to realize that all the OTHER horrible things he does would ALSO damn him to Hell and thus reverts back to his Knight Templar self for the rest of the movie.
 * In Megas XLR, Coop tries to protect the Earth, though it's usually his fault, and he does far more damage than anyone else. The S-Force and their evil nemesis, Ender, spend an entire episode pointing this out to him (aptly titled The Bad Guy), and nearly everyone else does at some point. In the series finale,
 * In an episode of Family Guy where Stewie  he says, "Dear Lord, I really do have problems don't I?" and we agree.
 * In The Lion King 2, after falling for Kiara and hearing Simba's side of Scar's death, Kovu finishes Becoming the Mask and gets a My God What Did I Almost Do moment, deciding not to go through with the assassination plot he had been sent to do. His mother didn't like this.
 * Not an easy process for Zuko of Avatar: The Last Airbender, but he eventually gets there: "I'm good now. I mean, I thought I was good before, but now I realize I was bad..."
 * In the film version of All Star Superman, Lex Luthor has one of his only heel realizations in any continuity after he finally gets it. What is "it"? Everything.

Superman: "If it had mattered to you, Luthor, you could have saved the world years ago."

Luthor: "... you're right.""

"Demona (and later John): What have I... what have they done?!"
 * In the South Park episode "Crack Baby Athletic Program", Cartman talks Kyle into joining his business of getting crack babies to play basketball which, after some kareoke and bacon pancakes from Denny's, he accepts. He then tells Stan about it and Stan doesn't reply, making Kyle give a monolouge how him and satire target NCAA do good by using players like slaves. Then towards the end of the ep Stan just says he's starting to sound like Cartman and Kyle goes "No I'm not goddammit!" and cups his mouth in shock.
 * In "The Glass Princess", an episode of the original My Little Pony, Porcina has been turning Ponyland and the ponies there into glass at the encouragement of her Raptorian minions. But when confronted by some of the ponies face-to-face, she can't do it. She had only been able to do it to the others because they didn't seem real through her scrying glass, and ends up seeing the error of her ways.
 * In Gargoyles, Demona comes oh-so-close to hitting this multiple times, but always turns it into an Ignored Epiphany at the last second. John Canmore winds up doing the same.


 * In the episode "Secret of my Excess" of My Little Pony Friendship Is Magic Spike's draconic hoarding instinct triggers and he starts going through dragon puberty, growing to prodigious size and snatching everything he likes the look of. Then Rarity snaps at him when he tries to steal the wrong necklace (one made with a stone he gave her, after painstakingly "ripening" it with intent to eat it himself) and he realizes that not only does his beloved Rarity literally not recognize him anymore, she hates what he's become, and the Heel Realization is so powerful it actually reverses the puberty and he shrinks back down do his familiar size.
 * Fluttershy in "Putting Your Hoof Down." After becoming more and more violent and then proceeding to tell off her own friends and make them cry, after looking into a puddle and seeing her own rage face she's horrified at what she's become.

Real Life

 * "The merchant of death is dead. Dr. Alfred Nobel, who became rich by finding ways to kill more people faster than ever before, died yesterday." This obituary was erroneously published after the death of Ludvig Nobel. Alfred Nobel, the inventor of dynamite, was spurred to create the Nobel Prize so he would be remembered as more than a murderer (That Other Wiki has more to say on the subject).
 * Specifically, he'd created dynamite as a tool to be used in construction (such as how dynamite was used in building railroads). When he discovered it was being used to kill people, he said My God What Have I Done and established the Nobel Prize in his will.
 * Albert Speer, the only man to plead guilty at Nuremberg Defense. "Twenty years. Well...that's fair enough. They couldn't have given me a lighter sentence, considering the facts, and I can't complain. I said the sentences must be severe, and I admitted my share of the guilt, so it would be ridiculous if I complained about the punishment."
 * Sometimes happens to residents of countries that censor their history, their present, or both.
 * Ashoka, the famous Indian conqueror, suddenly came to the realization that his conquests had caused a massive amount of death and suffering. Feeling lousy about himself, he took up Buddhism and became a peaceful ruler from then on.
 * Traudl Junge, the last personal secretary of Adolf Hitler, managed to rationalize her complicity in the Third Reich for years with the thought that she was too young to know better. Those excuses blew up on her face when she finally read a memorial plaque to Sophie Scholl, the great German heroine who gave her life opposing the Third Reich as a member of the White Rose resistance movement. It turned out Scholl was less than one year younger than herself at the time of her execution and Junge realized to her shame that she herself had no excuse for acknowleging and doing nothing.