Split Personality: Difference between revisions

{{trope}}

 

 

In real life, Dissociative Identity Disorder (or DID) is a condition believed to be most common among survivors of sexual and/or physical abuse that occurs in their childhood/teenage years. There is [[wikipedia:Dissociative identity disorder#Controversy|some controversy as to whether or not it even exists]]. Also, those who have it often consider it to be closer to [[Mind Hive]] than this trope. As it is understood to modern psychology, the condition is thought to sometimes result when a child/teen copes with abuse by convincing themselves that it's happening to someone else; as such, the trigger is generally some experience the child/teen is trying to [[Rule of Scary|dissociate themselves from]], by means of creating an "alter" who gets put in charge. Note that without recieving psychological counseling the symptoms will carry over into adulthood. The individual has no control (at least initially) over when the personalities "switch," and may not initially remember what happens to them while they are switched. To put all that in Tropese: you go to your [[Happy Place]] while some poor [[Red Shirt]] has to deal with the [[Trauma Conga Line]] or [[Humiliation Conga]]. There are also some individuals who claim to have "healthy," or non-traumatic/trauma-induced, multiplicity, though the existence of that is even more controversial among scientists. More info on healthy multiplicity can be found [http://www.healthymultiplicity.com here].

== Anime & Manga ==

* Pictured above: Nyu/Lucy in ''[[Elfen Lied]]''. One's has the mental capacities of a small child, the other's an insanely powerful killer out to take out a significant portion of humanity.

** It seems that most, if not all of the diclonii have a "neutral" personality and their inner voice that tells them to exterminate humans. Especially apparent in Nana's case, where when pushed, will become just as violent as any of the others.

* One one side we have [[Pretty Sammy|Misao Amano]] a [[Shrinking Violet]] schoolgirl who transforms (unknowningly and involuntarily) into Pixy Misa, the [[Black Magician Girl|evil magical girl]]. however, this trope is subverted when it was revealed in episode 19 that {{spoiler|her alter ego was in fact just the repressed aspects of her personality}} so basically the audience was lead to believe that the Pixy Misa persona was due to brainwashing when in fact {{spoiler|Misa and Misao are one and the same}}.

* Zetsu from ''[[Naruto]]'' has two well-differenced halves. His right side is black and speaks in a deep voice, while his left side is white and talks in a lighter voice. Both halves can talk with each other, and sometimes argue! Later, we see that he can even literally ''split'' his personalities (and body) into two different halves.

** Another example is Jugo, whose powers ''cause'' the split personality but activate independently, and as such, the change between the two has nothing to do with whether or not he uses his powers.

* Lady Une of ''[[Gundam Wing]]'' developed split personalities out of her love for her boss Treize, one a [[The Baroness|cold-hearted]], calculating [[Colonel Badass]], the other a kind, soft-spoken peace advocate. She has a few moments of near breakdown before being shot roughly halfway through the series and remaining comatose until the final arc. The coma apparently gives her time to resolve her issues, and when she wakes up she has Iron Une's military and strategic skills and Saint Une's compassion and desire for peace.

** Her [[Four Eyes, Zero Soul|glasses]] act as a trigger. Once she puts them on, you're guaranteed to see her order somebody's death.

* The "Other Momoka" from ''[[Keroro Gunsou]]'', as well as Private Tamama. Both appear sweet and harmless at first, but they hide an extremely jealous and possessive side that occasionally comes out when a perceived "rival" for the object of their affection appears.

* ''[[Mahoraba]]'''s Aoba Kozue has five personalities, switching to one at random whenever she's shocked or surprised. Her [[Kaleidoscope Eyes|eye colors change]] for each personality, and each personality prefers to wear her hair differently. She switches back to normal by going unconscious. While each personality is pretty distinct from the rest, they all have several distinct traits they share, particularly a liking for her crush and a major thing for umeboshi.

* Shinobu Sensui in ''[[Yu Yu Hakusho]]'' was a lawful yet pure and innocent young man before encountering the Black Book Club, rich men who tortured demons for fun. He couldn't bring himself to kill humans ([[What Measure Is a Non-Human?|as opposed to demons]]), and so developed another personality to do the dirty work. Over the years, he developed ''six'' alternate personalities, switching between them depending on the situation (I.e: {{spoiler|he used the [[Magnificent Bastard]] "Minoru" to recruit his followers and pull strings, then when Yusuke managed to hit him he switched to the [[Ax Crazy]] [[Complete Monster]] "Kazuya"}}). Each one has a different level of power; the original one, Shinobu, is the most powerful of them all... and [[Pure Is Not Good|is still an innocent]], as he let the others do the dirty work.

** {{spoiler|Soma Pieres}} has this as well. {{spoiler|Her name is Marie Parfacy}}.

*** Actually, it's the other way round: {{spoiler|Marie is the real girl and Soma is the [[Split Personality]]. Soma "goes to sleep" definitely in the second season and Marie returns to be the one in control.}}

* ''[[MPD Psycho]]'' really drives this trope to utter extremes. Hell, some of the multiple personalities even {{spoiler|appear in other physical bodies, and this even when their original physical body has died}}. Which might make this manga a slight twist.

* Yumie Takagi, berserker soldier of the Iscariot Organization in ''[[Hellsing]]''. The (not canon for the series) ''Cross Fire'' stories in the first three manga volumes involve her being brought out for various assassinations, to the dismay of her other personality, a thoroughly sweet nun named Yumiko.

* Jamie Hemeros in ''[[Zoids]] New Century Zero'' develops a cocky ace pilot alter-ego named Wild Eagle who takes control during battles every now and then. Although popular opinion seems to suggest that this happens when Jamie breaks the sound barrier in his Zoid, Wild Eagle actually seems to appear only when Jamie gets overly stressed out in battle.

** Wild Eagle might have been passed on from his father.

* In the second season of ''[[Princess Tutu]]'', {{spoiler|Mytho}} starts to complain of "another me" being inside of him, {{spoiler|an evil personality that quickly begins to take over more and more}}. Later, it's revealed that it's actually {{spoiler|the result of one of his heart shards being tainted with Raven's blood}}.

* ''[[Inuyasha]]'' has Suikotsu of the Band of Seven, who has three personalities: a kind and caring doctor who has no awareness of the other two (and is the original one), an ultra-violent killing machine who knows of the other two and despises his gentler personality, and an "in-between" personality who is aware of the others and serves the Band of Seven while remaining calmer and more rational than his bloodlusting counterpart.

** {{spoiler|1=A 5th personality emerges at one point called [[My Hero Zero|Zero]]. Zero represents all of Motoko and HiFuMi's negative emotions, and is [[Ax Crazy|very unstable]] -- Oh, and she has ''all'' the other personalities martial arts expertise, ''at the same time'', and is super strong, to boot. Later it's discovered that Zero is actually Motoko's first split personality, her [[Jekyll and Hyde|"Mr. Hyde"]], created when she forcibly locked away her anger (because she superstitiously believes that her anger killed her mother).}}

* ''[[Paranoia Agent]]'' has a woman whose split personality (who is far more promiscuous and thrill-seeking) actually leaves messages for her on her answering machine. And threats. [[Nightmare Fuel|Frightening stuff.]]

** This is actually a moment where MPD is depicted accurately. There have been recorded cases of personalities threatening other personalities. (Even going as far as causing bodily damage)

* Another example from a work by Satoshi Kon is {{spoiler|the title character}} of ''[[Paprika]]'', who is the dream avatar of {{spoiler|Dr. Atsuko Chiba. Paprika is everything that Chiba isn't and secretly wants to be.}}

** It gets better: {{spoiler|Paprika}} has characteristics of both {{spoiler|Chiba and Tokita}}, hinting at the former's affections for the latter.

* Usopp from ''[[One Piece]]'' may be developing this. When it was first introduced, "Sogeking" was an assumed name and [[Paper-Thin Disguise]] Usopp used (the reasons are complicated). Usopp acted rather differently while in his Sogeking disguise, even managing to score his first ''real'' [[Big Damn Heroes]] moment before reverting back to his old, cowardly self after circumstances changed and he was able to remove the mask. During a later fight (as Usopp), he is actually depicted mentally arguing with Sogeking. Later still:

{{quote| '''Usopp:''' * Running away from Perona and Bearsy* "Somebody, save me! Save me!"<br />

'''Sogeking:''' * Tackling and purifying a ''goddamn zombie bear''* "Save me, Sogeking!" }}

{{quote| '''Shiki:''' "There's nothing funny about having a dual personality."<br />

'''Tohko:''' "No, no. You know, you two don't have anything as pleasing to look at as dissociative identity disorder. Existing simultaneously, each having their own unique will, and on top of that your actions are coordinated. That sort of complex personality shouldn't be called a "dissociated identity," but rather a "united independent personality." }}

* Nobara Ibaragi in ''[[Gakuen Alice]]'' has some sort of split personality - one personality adores and wants to protect Mikan, and the other does whatever her evil 'teacher' tells her to do.

* {{spoiler|Hohenheim}} from ''[[Fullmetal Alchemist]]'' is revealed to suffer a sui generis, [[Up to Eleven|mindblowingly over the top]] case of this. Long story short: {{spoiler|he is a human Philosopher's Stone, these are made out of many people's souls, do the math}}. He has devoted most of his life to isolate, communicate with and ''befriend'' each of these {{spoiler|''536329'' different people "living" within him}}.

** Wolfgang Grimmer, meanwhile, occasionally blacks out when physically threatened. When he recovers, everyone who threatened him is dead. He refers to the personality that takes over as "the Magnificent Steiner", after a show he watched as a child (where the title character is the superhero persona of an unknowing boy).

* In ''[[Karneval]],'' {{spoiler|Yogi has one which causes him to unleash hell on whoever is unlucky enough to be fighting him. [[Kaleidoscope Hair|His usually gold hair turns silver as an indication.]]}}

* There are two characters in ''[[Zettai Karen Children]]'' who suffer from split personalities: Sera (due to possession) and [[Ax Crazy|Phantom Daughter]] AKA [[Emotionless Girl|Mirage]] AKA {{spoiler|[[Ordinary High School Student|Yuri / The Doll]]}}, [[Body Snatcher|Feather]]{{spoiler|is initially mistaken for one but was actually a different person or something}}.

* Lain, the main character of ''[[Serial Experiments Lain]]'', seems to have several as the series progresses: shy, schoolgirl Lain, a very famous "Lain of the Wired" who's arrogant and powerful, and a manipulative and sadistic Lain. It turns out that {{spoiler|there are an endless number of possible Lains, as each and every person's perception of Lain, and each concept of Lain that arises via [[Memetic Mutation]] in the Wired, becomes another one of her facets. Eventually, though, they undergo a [[Split Personality Merge]] into a kind-hearted, but extremely powerful, Lain}}.

* In the [[Hentai]] manga series ''[[Bondage Fairies]]'', the fourth manga - ''Extreme'' - introduces Urushira, an old flame of Pamila's. By day, she's a [[Meganekko|sweet]] and caring [[Hospital Hottie|doctor]]. {{spoiler|At night, her other personality - a nymphomanic [[Psycho Lesbian]] who is oh-so-very [[Yandere]] over Pamila, takes over. And when she wakes up the next morning, she doesn't remember a thing that her dark side did last night.}}

** Luna, too. {{spoiler|Ironically, her other personality is ''also'' Asuna.}}

* ''[[Black Lagoon]]'''s favorite [[Creepy Twins]], Hansel and Gretel, crank their typical [[Nightmare Fuel]] on this trope and share split personalities with each other. They could decide themselves who wanted to be Hansel and who wanted to be Gretel at the time, to the point that there is [[Wild Mass Guessing]] as to which one was actually which at any given point during their story arc.

== Comic Books ==

* Two-Face, of [[Batman]] fame, alternates between the just Harvey Dent and the maniacal Two-Face.

** A few comics have suggested that [[The Joker]] has multiple personality disorder, switching from harmless prankster to [[Complete Monster]] and everything inbetween.

** Even Batman himself has been accused of this. By day, he's [[Rich Idiot With No Day Job|Bruce Wayne]]. Put on the costume, and he's a completely different person. It's even [[The Dark Knight Saga|been argued]] that the Batman persona is his "true" personality, and Bruce Wayne is the mask he hides behind.

** The Hulk's son Skaar also has a split personality; "normal" Skaar is a Conan-style barbarian, while "puny" Skaar is an adolescent boy who hates his other self for his savage deeds.

* ''[[Spider-Man]]'' has the Green Goblin, who sometimes suffers from this, though in an inversion the real persona Norman Osborn can be just as evil as his [[Super-Powered Evil Side]]. And of course The Lizard, who is basically Bruce Banner-lite.

* Triplicate Girl/Triad from the ''[[Legion of Super-Heroes]]'' tends to show signs of this trope when she [[Doppelganger Spin|splits apart]]. The version of her in the Post-''[[Zero Hour]] [[Crisis Crossover|Hour]]'' reboot was explicitly written as having [[The Three Faces of Eve|three distinct personalities]] when split -- which was considered a mental illness on her [[Planet of Hats|homeworld]], although her grandmother insisted it was natural, and suppressing the different aspects was what was unhealthy.

** Then again, arguing with yourself is considered pretty nutty on this planet, too.

** The current version takes this a little far; her entire civilisation consists of triplicates of the same person. The one/three who are members of the Legion, however, have had so many different experiences from the others that the rest won't let them rejoin.

* The DCU also has had two different ''Rose and Thorn'' characters over the years, one whose Thorn persona was a villain, and a later one whose Thorn is a hero.

* There is a ''[[Star Wars]]'' comic, where after a Jedi kills a love in a fit of jealousy she develops a dissociative disorder. One personality is a crazed killer, murdering women that remind her of the one her love was cheating on her with, while the normal personality obsessively "chases" this killer.

* Ultron gets it honest, apparently, as his/her creator and 'father' figure, Dr. Henry Pym, underwent a period of insanity where he not only believed himself to be an entirely different person, but claimed to have actually ''killed'' Pym. While this was eventually resolved, he's still not the most stable of people, {{spoiler|to the point that when he was Skrull-replaced, they went through multiple agents specifically because each one that imitated him eventually developed his mental problems and had to be eliminated to keep the cover from being blown.}}

* Another from the Avengers; [[The Sentry]] and Void. [[The Sentry]] is 'The Golden Guardian of Good', blonde haired, handsome and heroic, his powers being strongest during the day. Basically a fangirl's dream version of Legolas, wielding more power than [[Silver Age]] Superman with added psychological problems, and a broader power set to boot, which is officially unlimited, facing down beings like Galactus and Green Scar (the latter when extremely agoraphobic) and winning or drawing. The Void is a pure evil, manipulative [[Eldritch Abomination]] in semi human form, strongest at night or in the Negative Zone, and is often described as akin to the Angel of Death. Both wield planet busting power, and are immortal effectively by choice. Whenever the Void turns up or [[The Sentry]] looks like he's about to lose it, it's a [[Mass "Oh Crap"]] moment for the entire Marvel Universe.

* Copycat from ''[[Gen 13|DV8]]'', whose four personalities are each represented by different fonts and word balloons. Ivana actually points out the [[Hollywood Psych]] at work, saying that Gem's condition doesn't resemble any case of Dissociative Identity Disorder she's ever read about. She theorizes it has something to do with her Gen-Factor mutating an existing psychological disorder.

* There's one story by German comic writer Walter Moers with a [[Funny Schizophrenia|"schizophrenic"]] guy who says that he "counts for two" because of his two personalities, of which he is aware, and who switch pretty fast. One of them is pretty boring and essentially just says things like "me too". Yes, it's neither correct nor PC.

* Peter Milligan's reboot of [[Shade the Changing Man]] has this in droves, with Shade, his heart, his suit, his skin, his alter-ego Hades, and others all forming, taking control, leaving, and even rejoining the hero.

 

* {{spoiler|Fiona}} from [[Kira Is Justice (Fanfic)|Kira Is Justice]].

* North Korea OC characters in ''[[Axis Powers Hetalia]]'' fandom tend to be either this or the [[Evil Twin]] of the canonical South Korea.

** Somewhat subverted with Fluttershy and Fluttercruel. Fluttercruel is her own individual being with her own soul, they're just [[Sharing a Body]]. {{spoiler|However, Fluttershy actually has a split personality in the form of Flutterage, born from her repressed anger. In the end she also does a [[Split Personality Merge]] and becomes whole.}}

* ''[[Ponies Make War (Fanfic)|Ponies Make War]]'': After Twilight Sparkle is freed from the [[Artifact of Doom|Sliver of Darkness]], the trauma of everything that's happened causes her mind to split in two -- the [[Actual Pacifist]] Sparkle (the dominant mind) and the more brutish Twilight (who talks to her, but has no control over their body). This lasts until {{spoiler|her torture at [[Big Bad|Titan's]] hooves causes her personalities to [[Split Personality Merge|fuse back together]]}}.

 

== Film ==

* {{spoiler|Axel Palmer}}, the killer in the original ''My Bloody Valentine''.

* Another well-known example is Gollum and Smeagol ("Stinker" and "Slinker") from Tolkien's ''[[The Lord of the Rings]]''. In the live-action movies, the two personalities frequently carry on conversations, to the point that they're practically two minds consciously coexisting simultaneously in the same head. This split-personality theme is less pronounced in the earlier animated movies or the original books, but still present. See entry under [[Gollum Made Me Do It]].

* In [[The Film of the Book|the movie]] ''[[Primal Fear]]'', the shy and gentle Aaron, on trial for killing the archbishop, is revealed to have a split personality named Roy who is much more outspoken and aggressive and did in fact kill the clergyman. At the end, we also find out that {{spoiler|Aaron doesn't actually have a split personality; the more disturbing truth is that ''Roy'' created ''Aaron'' and has been hiding behind the fake personality for years.}}

* The premise of the Farrelly Brothers' movie ''[[Me Myself and Irene]]''.

** Yet another example where it is incorrectly labeled as schizophrenia.

* {{spoiler|The first plot twist}} of the movie ''[[Identity]]''.

* In ''[[Adaptation]]'', Donald Kaufman writes a script titled ''The Three'', in which the serial killer, the cop chasing him, and the victim the cop falls in love with are all the same person. His brother Charlie points out [[Stylistic Suck|how idiotic and filled with]] [[Fridge Logic]] the film is.

* In the movie ''Peacock'', the painfully shy John ([[Cillian Murphy]]) has more confidant personality named Emma who makes him breakfast and lays out his clothes every day, like a wife would--which is precisely what everyone thinks she is when she is accidentally discovered. The personalities are aware of one another, but they have no memory of the other's experiences. John gets increasingly panicked as Emma begins to 'control' him more, and {{spoiler|Emma eventually 'murders' John by staging his death and presenting as Emma only.}}

* The basis of Chris Falkowski's short film, ''[http://www.vimeo.com/15013204 Head]''.

* Surprisingly averted with Two-Face in ''[[The Dark Knight Saga]]''. Several other diagnoses can surely be made. For one, he still can't make simple moral decisions without his coin and acts... should we say, chaotically.

** Doesn't seem so much that he ''can't'', just that he chooses not to. He only uses it when deciding the fates of the people he holds responsible for everything that happened to him in the last day or so. He's really just on a revenge spree, using the coin to illustrate the arbritariness of it all.

* In ''[[Psycho Beach Party]]'' you learn very early on that Chicklet has at least two other personalities.

 

 

* Subverted to hell and gone in the novel ''[[Blindsight]]'': one of the characters is a linguist with ''three'' surgically-induced alter personalities (known collectively as the Gang of Four). Some time is taken up in discussion of twentieth-century attitudes towards MPD, which are largely dismissed as barbaric and irrational.

** The Gang are a relatively realistic depiction of D.I.D cases where all of the personalities know of the others' existence and cooperate.

** This is apparently not that uncommon on the Discworld. Perdita is explained as having come about specifically because Agnes took a part of herself-her desire to not be a nice girl with a good personality-and gave it a name. Her senior witches muse to themselves that giving something a name gives it life, too. Rincewind's conscience and Sam Vimes's inner rage are also sometimes depicted as semi-sentient, especially in ''Night Watch'', where Vimes refers to it as "The Beast". In ''Thud!'', we find Vimes also has an "inner watchman", who {{spoiler|ends up [[Heroic Willpower|kicking a powerful vengeance spirit out of Vimes' mind.]]}}

** Mightily Oates also suffers from this, dividing into a skeptic part and a devout part. At one point he considered having himself exorcized. And, like Agnes/Perdita, he is resistant to vampiric mind control, because they can control only one mind per brain.

* Lord Mark Vorkosigan, from [[Lois McMaster Bujold|Lois McMaster Bujold's]] [[Vorkosigan Saga]], developed four extra personalities to resist torture: Gorge, Grunt, Howl and Killer. While he learns to control them, they explicitly do not go away. Fortunately they are all fixated of protecting/aiding Mark to the best of their abilities from the getgo and even like his girlfriend.

** Mark's brother/progenitor Miles hovers upon the verge of this trope when is undercover identity of Admiral Naismith threatens to become a fully separate persona. Mark also laments that at least Mile's alter ego is the sort of person you can dress up and take out to a party if the need arises compared to his far more primal alters.

* {{spoiler|Holmes/Moriarty/Jack the Ripper}} in ''The Last [[Sherlock Holmes]] Story'' (yeah, it was a ''weird'' book).

* In Amelia Atwater-Rhodes' ''Persistence of Memory'', Erin suffers from DID with the complication that {{spoiler|her alter comes from psychic residue from a vampire attack on her pregnant mother. While the alter that manifests is just the psychic remnant, the basis for}} Erin's alter, Shevaun, is a very real and very dangerous vampire.

* "Runt" from ''[[X Wing Series|Wraith Squadron]]'' manages to skirt the reality issue by being, well, an alien - he has a number of highly specialized minds, such as the Pilot and the Student; this is noted to be natural and healthy for his species, and learning to switch quickly between personalities is helpful for him. Lara Notsil/Gara Petothel/Kirney Slane, though she might appear to fit the trope and once dreamed of her [[Double Consciousness|different personae arguing]], is really a spy who started [[Becoming the Mask]] and soon had a [[Heel Face Turn|genuine desire to defect]], as well as some unstable identity issues. No split personality.

* This is only the ''start'' of the trouble in Michael Slade's {{spoiler|''Ghoul''}}.

* Severian in The ''[[Book of the New Sun]]'' who is both the original torturer Severian and also Chatelaine Thecla after eating the Albazo (and Thecla.)

* Janis Cordelia Plumtree in ''Earthquake Weather'' by [[Tim Powers]], whose condition is complicated by the fact that {{spoiler|one of her personalities is actually the spirit of her dead father}}.

* Ellen Hopkins' {{spoiler|Identical}} has a more realistic case of this. Near the end it is revealed that {{spoiler|Kaeleigh has DID and Raeanne is her other personality. The real Raeanne died in a car accident during the twins' childhood}}

* Done in a fairly realistic way in Matt Ruff's ''Set This House In Order'' with two characters who both have DID. Both suffered severe abuse as children, but one has been aware of this problem for a long time, and all the personalities work together and see a psychiatrist. The other character is younger and less aware of what is going on, and is afraid because she keeps having periods of memory loss. Both characters eventually work towards the goals of overcoming abuse, getting treatment, and choosing between full integration and trying to function by having all personalities cooperate with each other.

* In the two part ''[[Fear Street]]'' story ''Fear Hall'', it turns out that {{spoiler|Hope Mathis' three friends, Jasmine, Angel, and Eden, as well her homicidal boyfriend Darryl are actually split personalities, created due to her mother's abusive treatment towards her.}}

* In the ''[[New Jedi Order]]'' series, teen Jedi [[Action Girl|Tahiri]] has this after a [[Mad Scientist|Shaper's]] attempt to transform her into a Force-using [[Scary Dogmatic Aliens|Yuuzhan Vong]] fails- Tahiri retains her original personality, but the Vong personality can't be excised and remains in her subconscious. Ultimately, Riina (Tahiri's Vong half) tries to pull a [[Split Personality Takeover]], but when she and human Tahiri prove too connected for this to work out, a [[Split Personality Merge]] happens instead. The resulting person calls herself Tahiri, but has the memories and experiences of both.

* [[The Minds of Billy Milligan]] is the true story of a man with multiple personalities.

* [[Joe Ledger]] Has a committee in his head, [[Only Sane Man|The Civilian]] Who keeps him sane but is unable to deal with his day job, [[Blood Knight|The Warrior]] Who just wants to hurt someone and the Cop who combines the best of Both being honorable but still a fighter.

 

 

* In the ''Night Visions'' episode Switch, the protagonist, Sydney, has multiple personalities.

* ''[[Dollhouse]]'' has two: {{spoiler|Alpha and Echo. However, Echo only gets it the last two episodes, and they're both a literal case of many personalities.}}

** They've since clarified that it's neither: some people just can't handle having superpowers and the stress causes a dissociative break.

*** Making this one a quite literal [[Super-Powered Evil Side]].

* The ''[[Doctor Who]]'' audio Omega has a sort-of case of this: {{spoiler|Omega, half of whose personality is under the delusion that he's the Doctor and that Omega isn't inhabiting the same body as he is.}} However, it's clearly not DID and has rather more sci-fi causes.

* An episode of ''[[CSI]]'' had a woman faking multiple personalities to get an insanity plea.

** Worth noting that although the character is initially referred to as having a split personality, Foster corrects the speaker and instead says that she has DID, which is the term used for the rest of the episode. Foster also [[Lampshade Hanging|notes that DID is very rare, assuming it exists at all.]]

** Prof. Mc Elroy also knew about his Tut self (despite not recalling ''what'' he did under ) also tried to ''prevent'' King Tut's emergence via wearing a special hat supposed to soften blows to the head. Obviously, it didn't work.

* This is the premise for the Russian comedy series ''Zaitsev+1''. The protagonist, Sasha Zaitsev (sometimes Latinicized as Zaicev) is a typical college nerd who is in love with Nastya, the prettiest girl in his class, although she doesn't know it and stays with her cheating [[Jerk Jock]] boyfriend. Whenever Zaitsev gets hit in the head, is blinded by a bright light, or is deafened by a loud noise, he turns into Fyodor, his wild, rude, and cynical alter ego who likes big women. While Fyodor is actually played by a different actor, only the audience perceives him as a different person. Everyone else just notices that Zaitsev is suddenly acting very differently. Fyodor likes to sleep around, especially with another girl named Nastya, which becomes a problem for Zaitsev, who can't really explain his problem to others without sounding insane.

* ''[[Murdoch Mysteries]]'' featured a suspect in a murder that suffered from this in the episode 'Me, Myself, and Murdoch'

* Played for laughs in an episode of ''[[Night Court]]'', where a defendant's DID wasn't revealed to the main characters until near the end. One personality was prudish, the other was slutty. The episode's running gag was for her more "open" side luring [[Handsome Lech|Dan]] into some private (and always off-camera) location for some hanky-panky, only for her prudish side to re-emerge just as things were apparently getting good.

 

== Tabletop Games ==

* ''[[Call of Cthulhu]]'' supplement ''The Asylum and Other Tales'', adventure "The Madman". An investigator is driven insane by exposure to the [[Cthulhu Mythos]] and develops an evil alternate personality.

* In [[GURPS]] a character may be created with multiple personalities. Depending on the "point value" of each personality (they may have different abilities), this can actually count as an advantage! The trigger is a roll against IQ in a "stressful situation"; fail the roll and switch personalities. (If you have more than two, the new one is chosen at random.)

 

== Video Games ==

* Sora from ''[[Kingdom Hearts]]'' has multiple personalities. Sora himself is largely unaware of them, being [[Locked Out of the Loop]] to an epic degree, although he can sometimes sense their feelings. The other personalities are dormant and very rarely affect his behavior.

* In ''[[Killer 7]]'', the player-controlled character actually has seven distinct personalities, with their own looks, special abilities, everything. There's even a personality that's albino, one that's paraplegic, and one that's a woman.

** In the first versions of killer7 the physical body that everybody else sees is Garcian's. There was either a cutscene or just a part of a level that showed this when Dan walked into a bathroom and saw <s>himself</s> Garcian. This is also alluded to in the released game when confronting Curtis Blackburn when he says "you turned into a badass"

** Also Fred Bonaparte and his split personality Napoleon Bonaparte--Fred knows he's crazy, he just can't seem to get rid of Napoleon until Raz helps him out.

* Manah, the [[Creepy Child]] [[Big Bad]] of ''[[Drakengard]]'' seems at first to be suffering from this. It later turns out to be part-[[Split Personality]], part-[[Demonic Possession]].

** Crying Wolf of ''[[Metal Gear Solid 4 Guns of the Patriots]]'' suffers from a split personality. The "wolf" personality {{spoiler|has a compulsion to murder children}} and the "crying" personality {{spoiler|mourns those killed by the "wolf", but seems unaware that she is the "wolf".}}

*** Screaming Mantis also. The mantis persona was created by her psyche to justify the cannibalism required for her survival.

* Tira, from ''[[Soul Series|Soul Calibur IV]]'', has had her brain broken by prolonged exposure to [[Artifact of Doom|Soul Edge]], and she flips back and forth between her original "joyous" personality (where she'll kill you with a [[Psychotic Smirk|smile on her face]]) and her "malicious" one (where she'll just kill you).

** Not to forget Siegfried, before Nightmare could fully take over (and before Nightmare became a completely separate entity) Siegfried and Nightmare were sharing one body and Siegfried would usually wake up covered in blood.

* {{spoiler|Therese and Jeanette Voerman}} from ''[[Vampire: The Masquerade Bloodlines]]''. You never get the whole story, but the conversation you have with them after the fight in the diner suggested the split either happened when {{spoiler|Therese was sexually abused by her father, when their father shot himself/was shot by Therese, or after they were Embraced by a Malkavian.}} It's also possible that {{spoiler|Jeanette}} was a real person, and that {{spoiler|Therese}} killed her after finding her in bed with her father--{{spoiler|Therese was unable to accept that the only friend she'd ever had was dead, and split.}}

** Trilo also seems to forget he's a doll at times - at one point, he tries to get Ben to sing with him in a round.

* Tohno{{spoiler|/Nanaya}} Shiki from ''[[Tsukihime]]'', with a twist: despite barely appearing, the {{spoiler|Nanaya identity (his [[Super-Powered Evil Side]]) ''is actually his original self'', the Shiki who would have been had the events of ''[[Tsukihime]]'''s backstory not occurred. His "main" Tohno identity was added after "the incident" via brainwashing, but it remains as his main identity even after he finds out the truth}}.

*** {{spoiler|Raven}} is his [[Obfuscating Stupidity]] disguise, with hints of [[Becoming the Mask]].

* Brad Kilstein from ''[[Psychic Force]]''. For someone who is voiced by [[Ryusei Nakao]], he is surprisingly soft-hearted and abhors fighting and violence. However, at one point, his personality may revert into the typical [[Ryusei Nakao]] character: a brutal, sadistic [[Ax Crazy]] [[Psycho for Hire]].

* Dinah, one of the spirits from ''[[Summon Night]]: Swordcraft Story 2'' has a [[Good Angel, Bad Angel]] split personality. The "bad angel" personality is the default one, though sometimes her "good angel" side will shine through every now and then to apologize profusely for Bad!Dinah's rudeness.

** Or when she needs extreme courage.

* Agent Francis York Morgan of ''[[Deadly Premonition]]'' often has conversations with "Zach", to the confusion of others. {{spoiler|Near the end, it's revealed that Zach is the original personality and York was developed as a child in order to protect Zach's psyche. Eventually Francis York Morgan goes back to being Francis Zach Morgan in order to confront Forrest Kaysen for the finale.}}

* In ''[[Remember 11]]: The Age of Infinity'', Keiko Inubushi suffers from Dissociative Identity Disorder, resulting in her being sent to the SPHIA psychiatric hospital when one of her personalities commits several murders. Later, protagonists Kokoro and Satoru allow their companions to believe this about them (They are actually undergoing a series of [[Freaky Friday Flip|Freaky Friday Flips]], but find that its easier to convince their companions "I have two personalities", rather than "My mind randomly switches with somebody else's").

** It's hard, and [[Viewers are Morons]] and [[Reality Is Unrealistic]]; the result is a lot of work going in to something that no one is going to appreciate and will, in fact, pick apart because ''they'' have the wrong idea about how the disorder works.

* [[Inazuma Eleven]] 2's Fubuki Shirou has a special mention of a [[Split Personality]] aside from other characters with dual modes. His regular persona, a soft spoken and timid defender, and his alter persona, {{spoiler|created from a memory of his dead brother,}} a [[Hot-Blooded]] and reckless forward. The issue is developed further in the story.

 

== [[Visual Novels]] ==

 

 

== Web Comics ==

** She's manifested two more personalities since then, Lamerix the [[Mad Scientist]], and (male) superhero The Ambis.

* Kano, the protagonist of ''[[Kagerou]]'' has several personalities. The personality that answers to "Kano" is initially not aware of the others.

* Somewhat minor character Clive/Ernest in [[Concession]], Clive is passive and straight, while Ernest is gay and [http://concessioncomic.com/index.php?pid=20100226 rather assertive]

* [[Bob and George]] [http://www.bobandgeorge.com/archives/031026c George has an attack before the personality realizes it has the wrong character]-- and [[The Lord of the Rings|work]].

** An odd example too in that both of the personalities are nearly identical, but both speak with personal pronouns. In a sense the character doesn't really qualify.

* [http://healthymultiplicity.com/Zyfron/Gemini/ Gemini] is a slice-of-life about Bernie and Z, and their life as multiple (and Z's transgenderism)

* Derek and Dwayne of [[Moon Crest 24]] both have the spirits of Drake and Daniel inside them respectively. While Dwayne is aware of Daniel, Derek is not.

 

 

== Western Animation ==

** This got taken to a weird extreme when the killer vigilante "The Judge" appeared and started trying to kill Batman's rogue's gallery, including Two-Face, with death traps. {{spoiler|The Judge turned out to be an alternate personality of Two-Face himself.}}

** In the same series, Baby Doll alternated between being Baby, the [[Cheerful Child]] she once played and whom she had slipped into in obsession, and Mary Dahl, the sane adult woman. Her account of how it split was a [[Tear Jerker]]. [http://www.youtube.com/watch?v=gj45viQGBqM&feature=related Watch from 8:30 for it].

'''Baby Doll''': But I knows now I made a boo-boo! (''as Dahl'') It was hard for me out there. I studied and trained and auditioned, but no one wanted me. Over the years I remembered how happy I was with all you around me, and the folks at home watching me each week... Me. (''as Baby'') Baby Doll. Hee hee! Now I'm Baby for good, and everyone will love me again! }}

** And then there was the Ventriloquist and Scarface, the latter of which was a separate personality of the former, embodied in a ventriloquist dummy with a machine gun. Both personalities are present at the same time, it's just that the Ventriloquist can't acknowledge that he's the one working Mr. Scarface and giving him voice rather than the puppet being his own person. [[Demonic Dummy|It's occasionally hinted that Scarface has a will of his own]], but that's just silly.

{{quote| '''Mr Mackey:''' Mr Garrison, are you alright?<br />

'''Mr Hat:''' Mr. Garrison isn't here right now...<br />

'''Random:''' Ooh-ooh! Why not scan both? }}

* Dr. Rockso, the Rock n' Roll Clown (he does cocaine) in ''[[Metalocalypse]]''. Dr. Rockso is the dominant personality, but amicable troublemaker Leonard Rockstein briefly succeeded in suppressing him just long enough to make his return all the more surprising.

** In the episode [[Go Among Mad People|Insane in the Mainframe]], Fry encounters a robot Abraham Lincoln in the robot asylum. The problem isn't that he thinks he's Lincoln, but that he has multiple personalities, all of which are Lincoln.

{{quote| "I was born in 200 log cabins."}}

** They also actually go back and forth between acting like one person with two personalities and interacting with one another.

{{quote| '''Dr. Splitz''': Uh, don't you have anything to add, Splitzy?<br />

'''Splitzy''': I ain't talkin' to you! }}

* ''[[Ace Lightning]]'' has [[Meaningful Name|Random Virus]], a [[Cybernetics Eat Your Soul|cyborg]] with one good and one evil personality. He's constantly fighting between them though how much these two sides of him are indivdiuals is unclear.

** [[Grumpy Old Man]] (Chester)

** [[Foreign Exchange Student]] and gymnast (Svetlana)