Adaptation Personality Change

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Often when adapting from a book or other medium, a character will be included in the adaptation but their personality will be different from the original medium. Maybe they are a Composite Character and take on the role and personality of the one they get combined with. Maybe they only have a minor role initially but it gets expanded upon in the adaptation. Or maybe in the original their role was much bigger and got cut down in the adaptation, leaving them a little one dimensional.

See also Adaptation Explanation Extrication. Adaptational Badass, Adaptational Wimp, Adaptational Comic Relief, Adaptational Heroism, Adaptational Intelligence and Adaptational Villainy are subtropes. Also compare Alternative Character Interpretation. Character Exaggeration is this trope when it takes an existing personality trait and ramps it Up to Eleven.

Note that this is not a trope to complain about minor changes in an adaptation.

Examples:

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     Anime and Manga 
  • Black Butler Anime Grell is more like a parody of the clumsy bad-luck-magnet demented perverted masochistic stalker Sarutobi from Gintama, while Manga Grell is a mostly serious, significantly less romantic stone cold blood thirsty sadist. The problem stems from Grell having an increased roll in the anime & the animators having less material to work off of at the time, & was thus flanderized.
  • Pokémon:
    • Elesa goes from The Stoic in the games to a Genki Girl in the anime.
    • Cilan goes from Shrinking Violet in the games to a Large Ham in the anime.
    • Skyla goes from a Nice Girl to a Jerkass.
    • Brock doesn't have much of a known personality, but he's apparently not a pervert who coos over every mature-enough girl he meets.
    • Erika is very much The Ojou, but her anime version seems more casual. She also has more of a temper as she bans Ash from battling her because he dislikes perfume.
    • Misty doesn't have much dialogue but she doesn't seem to be tsundere. Most adaptations use this interpretation, but the anime makes her one of the most iconic tsundere characters in this genre.
    • Lt. Surge goes from Type 1 Eagle Land to Type 2.
    • Sabrina in the games is pacifistic and a Creepy Good who is not apparently malicious. In the anime she has an evil Split Personality but her "true" self at the end of her arc seems more in-line with her game self.
    • Lucy goes from the Narcissist to a friendly sugar and ice Nice Girl and possible love interest to Brock!
    • Anabel goes from arrogant and somewhat sadistic to a Nice Girl and possible love interest to Ash.
    • In the games (and Pokémon Origins), Mewtwo is a Blood Knight that supposedly has the most savage heart among Pokémon due to his genetic makeup. In his animé appearances, he's not so much savage, just very mistrustful to those he doesn't know. Though Mewtwo in Pokémon X and Y is found alone in an area where mistreated Pokemon live, implying it is lonely and has been abused, bringing him closer to the anime version.
    • The English dub changed several characters personalities in early seasons. For example, Gary was made into more of a Jerk Ass (making him more similar to his game counterpart, Blue) while Misty's cocky tendencies (in Japan she frequently referred to herself as the "most beautiful girl in the world") were toned down.
    • Jasmine goes from a Shrinking Violet in the games to a Badass in the anime, at least when it comes to kicking Team Rocket's ass and battling other trainers aggresively. She keeps her kind demeanor, though, but clearly doesn't hesitate here when speaking. On a side note, when her Ampharos is sick, she's just as fragile and depressed as in the games, but that only lasts one episode before the personality switch.
    • Even some Pokemon get this, on the species level no less—for instance, Spearow in the games is a tiny bird that isn't very good at flying and is as likely to flee from you as it is to fight. The anime opts to portray them as vicious little flying nightmares whose Establishing Character Moment consists of them swarming the protagonist and his partner Pokemon simply because the former threw a rock at one of them.
  • Pokémon Adventures:
    • Silver in the games is a grade A Jerkass who hits the protagonist and constantly complains. Silver in Adventures lacks all of these qualities.
    • Shauna is a peppy Genki Girl in the games but is a pessimistic Little Miss Snarker in this manga.
    • Some of the normally neutral, or even heroic, Gym Leaders and Elite Four characters were made into villains and anti-villians.
  • Pokémon: Diamond and Pearl Adventure!:
    • The usually Genki Girl Candice is presented as The Stoic.
    • Cyrus is much more dramatic and excitable than in the games.
  • In the Pokémon anime, Sabrina has a very malicious Split Personality that terrorized the entire Saffron City with her psychic powers because she could. The Electric Tale of Pikachu, despite the strong anime influence, averts her villainy and turned her into a heroic, motherly figure.
  • King Dedede of the Kirby games series is usually an Anti-Villain, committing petty acts of villainy at worst and often teaming up with Kirby. In the Kirby: Right Back at Ya! anime, Dedede is a more actively antagonistic and callous tyrant (if still ineffectual) and his redeeming moments are more few and in-between. Meanwhile Meta Knight, more a Hero Antagonist in the games, is Kirby's ally and mentor from the beginning of the anime.
  • Cyborg009:
  • Misa Amane from Death Note suffered this when the manga was turned into an anime. Her big moments from the manga were downplayed in the anime, she became more of The Ditz character because she appeared dumb when compared to L and Light, who also got the main focus of the show (which switched more towards Light and Near in the second season), and her Yandere trait toward Light was up-played before she was shoved aside.
  • Sailor Moon:
    • Rei Hino/Sailor Mars goes from an Aloof Dark-Haired Girl who Does Not Like Men in the manga to a Hot-Blooded, boy-crazy Tsundere in The '90s anime.
    • Jadeite goes from a stoic, serious Evil Genius in the manga to a vicious, sexist Jerkass toward the end of his run in the 90s anime, even though earlier episodes had him acting more like his manga self. Likewise, Nephrite goes from a Hot-Blooded warrior to a smooth-talking, arrogant astrology genius. Zoisite, meanwhile, was radically different in the live-action adaptation than he was in the manga and anime, being the Token Good Teammate rather than the biggest Smug Snake in his group. Only Kunzite is consistent across all versions.
    • Minako has a much darker personality in Pretty Guardian Sailor Moon than she did in the anime or the manga.
  • Hiroto Honda was a completely different character in Yu-Gi-Oh! (first anime series) compared to his manga counterpart. In the manga, he was a tough guy who was Vitriolic Best Buds with Jonouchi, while the original anime series portrayed him as a dorky hall monitor who was obsessed with playing by the rules.
    • The character of Bobassa is heavily different in both versions of the Millennium World arc. In the manga he is intelligent and very serious as well as an alternate form of Shadi, while in the anime he is primarily a comic relief character who is very simple-minded and spends most of his time thinking of his appetite.
  • In the Devil May Cry games, Dante is a wisecracking wild man, who always fights like he's having the time of his life. The anime made him far more laid-back, and took away most of his personality quirks in the process. He also gripes more about not getting paid for his work, whereas several lines in the first game indicate that he's not that concerned about money.
    • Dante's characterization in the series is fairly variable from game to game already, with only his core personality (that of a flippant but compassionate fun lover) seeing little change. The Animated Series merely continues the trend note  and, in some ways, does mirror the Dante of the original DMC, who was debonair and prone to cheeky remarks at his enemies' expense, but knew when to buckle down and focus on the mission. Some fans have theorized that either a) Dante is in a temporary funk as some kind of delayed reaction to the events of the original DMC spoiler  or b) Dante is more mellow here because TAS is the closest you'll get to a Slice of Life series for the devil hunter, what with the relatively mundane but still supernaturally-related assignments, Dante's dynamics with Patty, and his financial issues (as opposed to the big-time jobs he takes on in the games where he can really cut loose).
  • The first Fullmetal Alchemist anime adaptation changed quite a few things from the manga:
    • In the first anime adaptation Hohenheim's past is changed from a pawn of Father's who became immortal after he unwittingly helped sacrifice his country, to a selfish man who intentionally sacrificed countless innocent people to make a Philosopher's Stone just so he could be immortal. The reason he abandoned his family is also much more personal than in the manga where he left to try to stop the Big Bad's plan, compared to the first anime where he left in order to find a way to become mortal again so he could live a normal life with his family.
    • Zolf Kimblee, while a Mad Bomber in both incarnations, is genuinely Affably Evil in the manga and has very real respect and admiration for people who hold steadfast to their convictions. In the first anime however, he's a Misanthrope Supreme who relishes killing people because he believes everyone is worthless trash deep down. The reason for this was because the manga was still ongoing when the first anime was made, and at that point, his personality hadn't been fleshed out enough in the source material so the adaptation was simply working with what they had.
    • Barry the Chopper is a Laughably Evil villain in the manga, but a serious Ax-Crazy one in the anime.
  • In the Monster Rancher anime, Colt, the assistant from Monster Rancher 2, appears as an explorer in one episode. Since her game personality was nearly identical to Holly's, the anime made her a snarky, short-tempered explorer.
  • Sonic the Hedgehog: The Movie makes Sonic into much more of a Knight in Sour Armor instead of being a laid-back Nice Guy.
  • Henrietta in the first Gunslinger Girl anime is far more subdued and stoic than she is in the manga. In the manga she can barely go a page without smiling or blushing. Teatrino returns her to her original personality.
  • Several characters in Bubblegum Crisis from the OVA to Tokyo 2040. For a few examples:
    • In the OVA, Sylia is calm and collected, and more often, leading the Knight Sabers into battle herself. Her 2040 counterpart rarely went into the field herself, acting more as Mission Control, and was more volatile and prone to outbursts. Being a test subject from her father may be the cause of 2040!Sylia's instability.
    • In the OVA, Leon was a fan of the Knight Sabers, whereas while in 2040 counterpart warmed up to them, he started off disliking them.
    • Daley went from not-full-on Camp Gay to Straight Gay.
  • Kouta from Midori Days is an all too serious boy with a crush on Midori. His closeted homosexuality in the comic is never mentioned.
  • In the original visual novel Fate/stay night, Gilgamesh was essentially an Axe Crazy narcissist who did everything For the Evulz. In Fate/stay night [Unlimited Blade Works], he is saner with more understandable motives. This was likely a change to make his personality more consistent with the one he had in Fate/Zero.
  • Keiichi Maebara in Higurashi: When They Cry is notably more Hot-Blooded & a pretty big pervert in the anime adaptation. In the original sound novels, he's more of a rather generic, but good-natured Nice Guy who only occasionally acts hot-blooded (typically only during club games) and perverted, and often even chastises some of the girls (like Mion) for acting like a pervert. He's also much less subtle and introspective in the anime, however this can easily be justified in that it's hard to get across an introspective internal monologue in an animated format, as opposed to a sound novel format.
  • Kingdom Hearts: 358/2 Days:
    • Xion is a lot more peppy and expressive than her game counterpart, who is somewhat solemn.
    • In the game, Xaldin is composed, intelligent, and always completely serious. In the manga, he's comically boisterous and a fool that can't understand how to operate a computer.
  • In the movie based off of Uzumaki, Kirie Goshima goes from being a strong-willed character who is willing to risk her life to protect her family and significant other from the Spiral to being much more submissive and ineffectual. Likewise, her boyfriend Shuichi Saito stops being a tormented Waif Prophet with good intentions and becomes a Bespectacled Bastard Boyfriend.
  • The boys of Sands of Destruction are fairly consistent, but the girls differ wildly depending on the adaptation.
    • In the game, Morte was a rather energetic Mad Bomber who wanted to destroy the world because it was already ending and she was bored of it taking its time. The animenote  changes her to be rather grim and serious, and gives her a different reason for wanting to destroy the world: her family was wiped out by fighting with the beastmen, and so she saw no reason to continue living - but wanted to exact revenge on the ferals first. There are a few hints in the gamenote  that Morte may have been somber in the first drafts of the script (on which the anime would have been based), but her final personality is definitely upbeat. The manga takes her game personality and runs with it, pushing her well over the boundary of Ax-Crazy when she bombs a town of innocent people just so they can't be used as slaves. It also changes her motive for wanting to destroy the world again: this time, it's actually her fault the world ended up so broken in the first place - a thousand years prior, she had wished for a world with talking animals, but forgot to wish they would also be friends with humans. Wiping the whole thing clean and starting over is the only way she knows to fix things, but unfortunately, reincarnating messed with her memories and she's forgotten the part about fixing the world; all she remembers is that she wants it destroyed. The manga also turns her into Ms. Fanservice, whereas in the anime she was rather defensive of her modesty.
    • Rhi'a is calm, collected, and rather mysterious in the game. She does show the occasional bout of playful, even trollish humor (particularly in regards to Agan), but it's obvious she's intelligent even if she's a little odd. The anime drops all of this in favor of making her Trigger Happy and very sharp, whereas the manga robs her of practically all good sense and turns her into Plucky Comic Relief, as well as removing her guns entirely.
  • Out of the main Demashita! Powerpuff Girls Z characters, Momoko resembles her counterpart from The Powerpuff Girls the least. Blossom is studious and mature for her age while Momoko is ditzy and her knowledge is mostly about magical girl and super sentai shows. She's also a Love Freak while Blossom never had a crush, though the fact Momoko is a middle schooler while Blossom was a five year old could be the reason for the difference.

    Comic Books 
  • Max Ride: First Flight:
    • In the Maximum Ride novels Fang has the informed personality of being a stoic loner, but is depicted here as a friendly Deadpan Snarker.
    • Max had a minor Girls Rule-Boy’s Drool type attitude - shown when she’s sees a group of boy’s picking on a girl - Ella, which is absent from the comic.
  • Sonic the Comic:
    • Sonic is a heroic, laidback character in the games, and at the time of the comic was written in western canon as being a Totally Radical Mascot with Attitude. Sonic in the Fleetway comics exhibits none of said traits, instead being a bullying Jerkass. He is heroic and does really love his friends but he has a hard time showing his emotions and uses Trash Talk a lot.
    • Tails is usually a genius Child Prodigy but here he's a naive Cheerful Child with a cowardly streak.
    • Amy is an Action Girl who doesn't really resemble either the classic or post-Adventure versions of her character. It's never truly specified if she has a crush on Sonic or if she's teasing him but either way it doesn't come up much.
  • In its US counterpart Archie Comics' Sonic the Hedgehog, most of the games cast resembled their counterparts in the DiC cartoons at the time (the earliest comics mirrored Adventures of Sonic the Hedgehog, while the later more serious stories issues adapted their Sonic Satam counterparts). The most recent issues tend to keep the cast far more loyal to their games incarnations, especially following the light reboot.
    • Outside the games characters, Sally and Antoine lost most of the comedic pomposity of their cartoon counterparts after the early issues and became more lucid, serious minded heroes (Antoine also Took a Level in Badass and became a competent swordsman and far more intelligent).
  • Most of the major characters in All-Star Batman & Robin seriously differ from their mainstream counterparts. Superman has severe anger issues, Wonder Woman is an unsympathetic man-hater, the Joker isn't funny and Batman himself is a violent and cruel Man Child. It is believed that the characters will eventually grow into their more recognizable selves, but that is yet to happen.
  • Name one hero outisde of Peter Parker in the Ultimate Marvel universe and chances are they're either psychotic, a jackass, or (more often) a combination of both. That, or they have on aspect of their personality dialed Up to Eleven:
    • Captain America's entire personality becomes "he's from the 1940s", and thus he picks up the then-normal racism and bigotry, as opposed to regular Cap, who is an example of the best of humanity.
    • Iron Man gets his alcoholic aspect amplified to the point that he's always drinking, while mainstream Tony had his alcoholism dealt with incredibly seriously. That said, this is a mild example as he's still one of the nicer characters in the Ultimate Universe alongside the Spider-Men.
    • Scarlet Witch and Quicksilver go from loving siblings who were maybe a little too close to full-blown incestuous lovers.
  • Jem and the Holograms:
    • In the cartoon Rio is very overprotective of Jerrica and was easily jealous. In the comics he's taken a serious chill pill and doesn't even like Jem at first.
    • Jerrica from the cartoon is a confident young woman but in the comics she's a Shrinking Violet with Stage Fright. The comic also puts more emphasis on how overworked she can get, something that is mostly glossed over in the cartoon.
    • Pizzazz's good qualities are more apparent in the comics. She's also more serious about music instead of being in it simply for the fame.

    Fan Fiction 

    Films — Animated 
  • In the 2008 adaptation of Horton Hears a Who!, Rudy is altered to be much more social and skeptical of his mother's extremely uptight and arrogant worldview. While in the original short story his role consisted of merely echoing his mother's "Hmph!", in the film he is in fact the one who saves the clover and all of Whoville from falling into the boiling beezlenut oil.
  • BIONICLE's Direct-to-Video films:
    • In Mask of Light, the protagonist Takua was written as a irresponsible, goofy and rather dim to contrast with Jaller's Straight Man, whereas in previous and arguably every other incarnation he is an adventerous Guile Hero.
    • Also from Mask of Light, Onua, who has always been depicted as quiet and wise, was instead depicted as a typical dim-witted Boisterous Bruiser. Fortunately, further adaptations returned to his original characterization.
    • Web of Shadows changed Sidorak from a fierce Warrior King who personally leads his army into battle to a coward who is described as never dirtying his hands with combat.
  • Done in spades for most Disney Animated Canon adaptations of novels:
    • In The Jungle Book, Baloo and Bageehra essentially switch personalities (Baloo was a stern mentor and Bagheera was a laid-back friend in the book), Kaa becomes a clownish villain rather than a wise mentor for Mowgli, and Shere Khan is turned from a Smug Snake to a Faux Affably Evil villain.
    • In The Little Mermaid, the Sea Witch becomes a cunning, dishonest, power-hungry villain who tricks Ariel into signing a contract with her, rather than the neutral character in the original tale who warns the mermaid of the consequences of her magic.
    • In The Hunchback of Notre Dame, compared to their book counterparts, Quasimodo is much more gentle, Esmeralda is smarter and less naive, and Phoebus is more heroic, with his womanizer tendencies dropped. Meanwhile, Frollo gets Adaptational Villainy and loses all his redeeming traits (which are given to an original character, the Archdeacon of Notre-Dame).
    • In Tarzan, Kerchak is a stern, but benevolent leader of the apes, rather than the violent, abusive character he is in the books.
  • Almost everyone in Ultimate Avengers is made much more like their mainstream counterpart, as opposed to their Ultimate version, since those guys are a bunch of assholes.
    • Captain America is essentially his mainstream version, The Cape who believes in America's ideals and is a kind old soldier. His Ultimate version is more concerned with America's interests than its ideals, and occasionally gets caught up in old fashioned prejudices and opinions.
    • Iron Man only slightly exhibits signs that he's an alcoholic, drinking one glass when he is fired from the team. Other than that, he's his mainstream counterpart, aside from the part about still supplying weapons. Ultimate Iron Man is so much of an alcoholic that for a few years, you literally could not see him out of armour and not drinking.
    • Hank Pym goes from workaholic scientist and wife beater to a slightly aggressive man who is protective of his wife.
    • Ultimate Black Widow was a traitor on the team and a Manipulative Bitch. Here, Natasha is a straight up hero, who's as kind as her mainstream counterpart.
    • Nick Fury has always been an anti-hero, but his Ultimate version was an outright Jerkass Manipulative Bastard, and even Designated Hero, if that. Here, his goals are entirely heroic, and he just wants to save the world.
  • In Mr. Peabody & Sherman, Mr. Peabody's feelings for Sherman are changed from treating the boy as merely his pet and assistant to the dog considering Sherman his dearly beloved son.
  • In The Adventures of Tintin, this happens to Barnaby and Ivan Ivanovitch Sakharine. Sakharine in the comics is annoying but harmless, and is implied to be nice enough to offer one of his ships to Captain Haddock's maritime gallery. In the movie, he is a vengeful and vindictive Big Bad. Barnaby in the comics was a spy for the villains who turned informer, and they shot him to keep him from revealing their activities. The film adapts him into a well-meaning Interpol agent who tries to warn and help Tintin, although Tintin doesn't realize this until after Barnaby is shot by Sakharine's henchmen.
  • Coraline in the books is more stoic, mature and cerebral while movie Coraline is more belligerent and sarcastic.
  • Tinkerbell is toned down in Disney Fairies compared to Peter Pan. She isn't clingy and a jerk anymore, instead being a Plucky Girl.

    Films — Live-Action 
  • In Brian DePalma's version of Carrie, Norma Watson is made into Chris's gal pal and openly bullies Carrie as well as being in on the prank at the prom. This is due to DePalma being impressed with PJ Soles's performance and rewriting Norma to expand her role.
    • Again in the TV remake with Tina Blake. While she is one of Chris's friends in the book, she isn't as big a bully and she isn't in on the prank, which she is in the film.
    • Helen Shyres in the book is mostly just a background character as Sue's friend but gets combined with another girl Frieda Jason in the TV film and so has her scene where she is nice to Carrie at the prom.
  • Harry Potter
    • Cho in the books was written to be excessively jealous and clingy when she and Harry are dating but none of this is shown in the movies.
    • The films also made Ginny noticeably more soft-spoken, in contrast to the Fiery Redhead she was in the books.
    • Narcissa Malfoy also has her Rich Bitch and haughty racism tendencies dropped from the films.
    • Albus Dumbledore is calmer and more unflappable in the books, whereas in the films he's more emotional and prone to occasional bursts of anger.
    • While Bellatrix Lestrange is still psychopathic and sadistic like her book incarnation, she is much more of a Psychopathic Womanchild in the films.
    • A common complaint among the fandom is the tweaking of Ron and Hermione's characters, since many of the former's shining moments from the books got given to the latter. The end result was a Ron which seemed generally less brave and competent, and a Hermione who comes across as being even more capable and understanding.
  • Get Smart turned 99 into a Defrosting Ice Queen and Larrabee into a Jerk Jock, but the most noticeable change is that Max has now a brain between his ears.
  • Count Olaf in A Series of Unfortunate Events was written as very sinister in the original books but in the film he is more over the top and hammy leaning closer to comic relief. Granted, it was Jim Carrey who portrayed the character after all.
  • Jurassic Park: In the original book, Gennaro the lawyer ends up turning into The Lancer for Alan Grant, and he even punches out a Velociraptor! The film turns Gennaro into a Dirty Coward that gets eaten by a T-Rex whilst sitting on a toilet. John Hammond in the original book is The Scrooge and a tyrant who shortchanges people (giving fat programmer Dennis a reason to betray him), has a Never My Fault mentality, and then suffers Karmic Death. The film turns Hammond into a kindly old man who truly thinks that what he's doing is a good idea (which it isn't), and one result of the change is that Dennis comes off as more of a Jerkass for betraying him!
    • Though, to be fair, Genaro's characterization (and manner of death), mirrors Ed Regis, Ingen's PR guy from the book, making him more of a Composite Character.
  • Peter Jackson's The Lord of the Rings films did this with a few characters. Arwen's role is expanded and she becomes an Action Girl, Faramir becomes tempted by the ring and his Parental Favoritism issues are more played up. Elrond is also made to be bitter and cynical, thinking humans are useless. Merry was also more serious in the book but in the films is more carefree and comical. Denethor also gets a bit of Adaptational Villainy when he was simply Good Is Not Nice in the book.
  • The movie of Forrest Gump does this with Jenny (making her a vapid party girl), Forrest's mom (who loved her son, but was much less in charge), and to an extent, Forrest himself, who in the books is an idiot savant, and much less Inspirationally Disadvantaged.
  • Alvin and the Chipmunks, as well as The Chipettes experience this with almost every new incarnation. While the characters have experienced some natural Character Development over the years (especially true of the 1980s cartoon series), they have also experienced complete changes in their personalities when it comes to the more recent live action/CGI movies. For example, Simon goes from being Deadpan Snarker with biting sarcasm to having a less cerebral sense of humor with a underlying perverted streak; Theodore's innocence and naivete not only becomes a thing of flanderization, but he also becomes more absent-minded (much like Jeanette usually is); and Brittany is hardly the Alpha Bitch diva that she's been known for in previous incarnations.
    • However, they seem to return to their 80s personalities in the 2015 series.
  • The Adventures of Milo and Otis: Otis the pug is depicted as a little stuffy and fastidious. In the original Japanese Koneko Monogatari, the narrator says that Otis (known as Puusuke in the original) is somewhat ditzy.
  • In Percy Jackson and the Olympians, Grover was written as more timid and shy. In the movie, he was more of a Casanova Wannabe.
    • In the books, Annabeth might've been a serious Action Girl, but she was also a Plucky Girl who valued brains more than brawn. The movie focused more on her toughness and made her a lot more abrasive, making her more like Clarisse from the books.
  • Man of Steel: General Zod in the comics and previous films was a straight-up villain, a War Criminal who attempted a coup prior to Krypton's destruction before being sent to the Phantom Zone, wishes to kill Superman simply for being the son of his old friend Jor-El (who he blames for his banishment). Man of Steel, however, expands on his motivation, having him attempt his coup because Krypton is dying and he blames the rulers for it, and his attempted conquering of Earth being so he could preserve his now-near extinct species.
    • His lieutenant Faora is also changed; in the comics she's a violent Misandrist and a serial killer who teamed with Zod mostly for benefit. In the film she's a Noble Demon, his loyal dragon, and isn't shown to have any particular hatred for males.
  • Captain Kirk of Star Trek: The Original Series is not the same Kirk as the one from rebooted movies. The reboot is an Alternate Timeline of the original in which Kirk's father dies literally seconds after Kirk is born, and his mother remarries a Jerkass; this results in a very different childhood for young Kirk, and thus a different space captain as an adult. Curiously, though, the films portray Kirk as a Flanderization of his original personality; the plot and interactions suggest that the filmmakers weren't trying for this trope, but simply weren't as familiar with the original as they ought to have been. They portray Kirk as The Casanova and a Cowboy Cop, which is what Pop-Cultural Osmosis suggests he was in the original. But in the original, he was described as "a walking stack of books" as a cadet, remained highly respectful of women (even if he wasn't shy about using his charisma), and generally reflected a lot on the moments where he bent the rules to do what was right, earning Starfleet's respect for that (outside of the Obstructive Bureaucrats he annoyed, who would badmouth him in later Star Trek series, exacerbating the Flanderization). In the films, he constantly clashes with authority, gets in trouble by rushing into situations without thinking, and neither Starfleet nor the women he hits on respect him very much (at least at first).
  • Many of the characters in Guardians of the Galaxy, since most of them were too obscure for most of the audience to notice or care. Star-Lord goes from a cosmic hero to a sarcastic, jokey outlaw (this becomes Ret Canon in subsequent comics), Drax becomes extremely Literal-Minded, Yondu goes from being a Noble Savage superhero to a murderous redneck criminal and Anti-Villain, and Ronan the Accuser goes from being a Knight Templar in the Kree military to a fanatical, mass-murdering terrorist who according to Word of God, was inspired by Osama bin Laden.
    • Every hero in the Marvel Cinematic Universe has been altered to some degree, with the most consistent change being that none of them abide by the Thou Shall Not Kill trope, even the ones who ardently lived by it in the comics.
  • X-Men: Apocalypse:
    • Warren Worthington III in X-Men: The Last Stand was presented as a wholesome Nice Guy; in this film, he's an angry and cocky rebel. He later becomes a Horseman of Apocalypse.
    • Scott Summers is a bad boy instead of a "boy scout" (as he calls himself in the first movie). He encourages a few of his classmates to skip school, and he steals one of Xavier's fancy cars to drive them to the mall.
    • Kurt Wagner no longer goes hammy to remind everyone that "in the Munich circus, I was known as The Incredible Nightcrawler!", as in X2: X-Men United.
  • Escape to Witch Mountain: The owner of the orphanage in the movie was a kind lady while in the book, it was more of a home for orphaned juvenile delinquents run by a former police woman who took no guff from anyone.
  • In the "Addams family" films the girl, Wednesday, is usually scowling and the boy, Pugsley, is usually smiling while in the original panel cartoons it's the other way around.
  • Asher is consistently happy and cheerful throughout The Giver (where he's assigned a recreational position), while in the film he starts off that way but becomes more serious and unsmiling after being assigned drone pilot.
  • Into the Woods:
    • Because Rapunzel's Prince's affair with Snow White was cut, he comes across as less of an unlikable womanizer. He's still boastful, but his interactions with Rapunzel are sweet and Adorkable at times.
    • Likewise Rapunzel herself is The Ophelia in the play. None of these traits show up in the film and she doesn't commit suicide by running into the Giantess.
  • The Blade Trilogy had two examples:
    • The titular Blade himself was The Stoic, whereas in the comics, he was more talkative and conceited.
    • Hannibal King in the comics was somewhat older, and more serious and reserved; in Blade: Trinity, he's Ryan Reynolds.
  • Bean in the film Ender's Game is made to be a peer of Ender's class, not a younger trainee like he was in the book. As a result he takes on some of book!Alai's traits, including being a bit of a bully to Ender before becoming his friend. This is quite a contrast to Bean's personality in the books, where he wouldn't taunt anybody due to being the smallest student and so preferred to be ignored.
  • Captain George Stacy was a supporter of Spider-Man from the start in the comics. However, in The Amazing Spider-Man, he starts off distrustful of the webhead and wanting to arrest Spidey before he warms up to him.

     Live Action TV 
  • In the original The Worst Witch books Miss Bat appears only in the second book and appears to be your average strict teacher. The TV series has her as a Cloud Cuckoo Lander and much more empathic to the students. Miss Drill is also written as a tough Drill Sergeant Nasty type of PE teacher in the books but is much more friendly in the TV series, as well as being rewritten to be mortal. She is implied to be a witch in the books.
  • Game of Thrones:
    • In the original books, Renly is frivolous, charismatic and entitled, with a love for the fashion and romance of knightly pursuits. He seeks the throne simply because he has the support to do so. In the show, Renly is the complete opposite: a serious and intelligent man who hates bloodshed and must be convinced to seek the throne because he'll make a better ruler.
    • Tywin in the series never has a thought beyond what he needs to do to attain and keep power. In the series, we learn that he does have a softer side, at least with Arya. His true ruthlessness seems to be reserved for his own family and others he expects more of.
    • Shae from the books was a Gold Digger who was only interested in Tyrion for his money and betrayed him when she got a better offer from Cersei. In the show she's a Hooker with a Heart of Gold who genuinely loves Tyrion. She still betrays him, but in the show it's because she's a Woman Scorned after Tyrion tried to Break Her Heart to Save Her. She's also a badass in the show.
    • Bronn from the books is simply a thuggish Professional Killer whom Tyrion employs as his bodyguard. In the show he's an affable, witty Punch Clock Villain who genuinely becomes friends with Tyrion.
    • Dagmer Cleftjaw from the books only appears once, but it's established he's an Honorary Uncle figure to Theon Greyjoy. In the show he's The Corrupter and a Poisonous Friend, convincing Theon to do darker and darker deeds to gain his men's respect and eventually betraying him after Theon's occupation of Winterfell fails. He's essentially a stand-in for Ramsay Bolton, who had the same role in the books.
    • Robb Stark is a lot more confident and assertive in the show than in the books, where he's just a teenage boy trying to live up to the expectations placed on him. Similarly, many of Daenerys Targaryen's insecurities were erased after her dragons hatched, whereas her book counterpart at times struggled with feelings of being in over her head.
    • Brienne becomes more aggressive and brusque than her gentle Wide-Eyed Idealist book counterpart, actively seeking vengeance over fulfilling her vows of protection.
    • Book!Ellaria Sand becomes a despondent Widow Woman after Oberyn's death and argues against seeking vengeance as those responsible for the deaths among the Martells are dead. TV!Ellaria is positively baying for Lannister blood and tries to have Princess Myrcella killed and overthrow her brother-in-law Prince Doran like Arianne Martell in the book. She finally has Myrcella killed, then personally murders Doran and has her daughters murder Doran's son.
    • Stannis also comes to mind. While he's a bit of a hardass in the books, the TV series turns him into a fanatic who sacrificed his own daughter. In the books he's more of a pragmatic atheist who isn't so willing to follow Melissandre, and is more conflicted about his actions.
  • Smallville: Like Man of Steel would do later, General Zod is given a new personality and motivation for his actions. Depicted as more of a strategic planner due to being depowered for the most part, he actually seeks out to befriend Clark, believing he can help their people gain their powers like him, and actually strikes up a friendship with Lois (though, mostly to manipulate her). His motivation is also changed, instead of wishing to rule For the Evulz, he was originally a noble, charismatic military Captain who's family died in the battle of Kandor, and was denied the chance to clone his beloved son, resulting in his Start of Darkness. He's a literal Woobie, Destroyer of Worlds in this case too, as he's responsible for the destruction of Krypton in this continuity.
  • In Penny Dreadful, unlike Mary Shelley's book, Frankenstein has no apparent emotional life outside of his work. No family, no fianceé, no nuthin' until he meets the other adventurers. Dorian Gray also has depths that he didn't possess in Oscar Wilde's book, wherein he was actually glad he drove a lover to suicide and murdered his closest friend for causing a completely unforeseeable freak accident.
  • The Casablanca TV series makes Sacha, a Plucky Comic Relief character in the original, much duller and more reserved.
  • The 100 TV series has Bellamy start out as more selfish and ruthless than his book counterpart. Octavia loses her drug addiction issues from the book, while also becoming a more confident and adventurous free spirit. Clarke starts out with a personality fairly close to her book counterpart (albeit with a changed backstory), but thanks to Adaptation Expansion, her character development goes in a different direction.
  • Madame Dorothea from City of Bones was originally reclusive and somber, "Dot" is sociable and upbeat in Shadowhunters.

     Video Games 
  • A common trait to the Super Robot Wars series, as the different circumstances means that characters would develop differently than they did in their own shows. The Z series is famous for helping Shinn Asuka change from a rash, angry youth into a mature, young soldier. Other changes include Haman Khan being noticeably kinder than her show counterpart, as at several points she expresses genuine concern for Marida and Mineva's well-being. Though in the case of Mineva, Unicorn retroactively shows us that Haman had at least one Pet the Dog moment with Mineva in ZZ, likely due to Char calling her out in Zeta for her treatment of the girl. The SRW games just make the change in perspective apparent from the beginning.
    • A more famous example that occurs in several SRW timelines is Shinji Ikari: Given the friendship, support, and respect he never attained in his home series, he goes from lonely and introverted to stable, cheerful, and open.
  • In Yu-Gi-Oh! Forbidden Memories, due to the game being released before Battle City came out, Ishizu/Isis and Priest Seto are majorly different than their manga and anime counterparts.
  • Jason Todd in Batman: Arkham Knight. Whereas his comic counterpart was truly sadistic, reveling in the deaths he caused, and clearly cared very little for the rest of the batfamily, here he's a Woobie, Destroyer of Worlds who still loves Barbara and Alfred, and seems largely unconcerned with his violent actions. Also, where in the comics he only gets worse, adding cops and civilians to his list of targets, here he makes a full Heel-Face Turn.
    • Tim Drake's Robin is a lot more similar to Dick Grayson in the series, as he is older, uses a lot of sarcasm and has a relationship with Oracle.
  • Kefka in Final Fantasy VI is hateful, cruel and sadistic in the English localisation, when in the original Japanese he was a Psychopathic Manchild with Ambiguous Innocence. Even Square regarded the English version as an improvement, and took elements of his English characterisation back into Kefka's appearance in Dissidia: Final Fantasy.
  • Kirby's Avalanche for the SNES was basically Puyo Puyo with a Kirby coat of paint on it. Thus, it was handled by different people than the regular Kirby games, and since Kirby games have little dialogue and plot as it is, they had to make up a lot. As a result, Kirby (whose personality has since been tweaked to being little more than a toddler) is making dramatic anime-style speeches to his opponents or being a snarky little Jerk Ass with a big grin on his face; at one point he stomps on Whispy's root after being told not to do so, saying he's in the mood for apple pie.

     Web Comics 
  • Awkward Zombie portrays Marth from Fire Emblem rather differently than the games do. The author was rather surprised when confronted with a game highlighting the difference, noting that "Sometimes I forget that I kinda sorta totally made up his characterization for the purposes of this comic."

     Web Original 

     Western Animation 
  • Scarface's mate in The Animals of Farthing Wood is mostly just a background character and isn't necessarily evil but the cartoon expands her role into a proper Femme Fatale. Also Friendly takes on Bold's role as the sneak between Charmer and Ranger, making his name in the cartoon rather ironic.
  • A lot of Sonic the Hedgehog adaptations do this. Perhaps most notably, Sonic Satam turns Dr. Ivo "Eggman" Robotnik from a clownish Anti-Villain to a (mostly) deathly serious overlord. Sonic's personality in different medias can range anywhere from an incorruptibly kind and laid back Ace to a Jerkass Knight in Sour Armor. The whole cast that has been in more than one interpretation of the franchise has underwent this process to some extent.
  • Mickey Mouse may be an odd variation in that it was his adaptation interpretations that avoided such a change. While the Mickey of Classic Disney Shorts was slowly tamed into The Everyman, the comics continued to refer to his earlier more adventurous and abrasive persona for a long period of time. Epic Mickey even plays with this, allowing you to choose between evolving Mickey into either his former or latter persona.
  • Teenage Mutant Ninja Turtles: The characters are reinterpreted in every retelling especially Michelangelo and Raphael. They typically fit the same archetype, but express it in different ways:
    • All were extremely flanderized in the 1987 series, except for Leonardo who was only mildly flanderized. Donatello went from being intellectual to being a Gadgeteer Genius, Michelangelo went from being mostly laidback to being a Surfer Dude obsessed with pizza, but most egregiously, Raphael went from being dark and violent to being snarky and constantly breaking the fourth wall.
    • Michelangelo: Mirage Comics - laidback, 1987 Cartoon - Surfer Dude, Film Series - jokester, 2003 Cartoon - prankster.
    • Raphael: Mirage Comics - violent, 1987 Cartoon - wise cracker, Film - brooding, 2003 Cartoon gruff.
      • Raph is basically the Wolverine of the TMNT. While he remains the most short-fused and quickest to resort to hitting things, in an adaptation where he's not allowed to actually introduce living enemies' vital organs to his sai onscreen, he becomes a guy whose bark is worse than his bite.
  • Many characters of The Railway Series have ended up altered in Thomas the Tank Engine due to Flanderization coming into play during the show's long run. Thomas in particular is a more rude and pretentious character in most of the novels (only warming in the very later books). While early seasons kept to this depiction, he quickly became more altruistic and kind as the show branched away from the novels, as well as becoming something of a Cloud Cuckoo Lander come the CGI transition. Wiser supporting characters such as Edward and Toby also became more flawed and childlike to enable more spotlight episodes, while Henry, Gordon and James underwent a more thorough Divergent Character Evolution.
    • This is put on display in The Adventure Begins, which readapts some of the earliest stories of the books and TV series. Thomas is far more idealistic and innocent than he was in his debut novel. Meanwhile Henry is far more meek and gentle, his hatred of the rain is treated more as phobia (in the books he was merely pompous about getting his paint spoiled).
  • For the Nick Jr. (Treehouse TV in Canada) Animated Adaptation of Rosemary Wells's Max and Ruby series. Max's big sister Ruby was more cheerful compared to her personality in the books. Especially in the earlier books such as "Max's Chocolate Chicken" and "Max's Christmas" where she was more of a Deadpan Snarker and more stern. This was also shown in the 90's Animated Adaptation for those two books which we're released on VHS. However Ruby did start becoming more cheerful in later entries of the books.
  • In the animated CGI Peter Rabbit series. Peter Rabbit and Benjamin Bunny are alot more tolerable and caring then they we're in the original books. Especially Benjamin Bunny, who was greedy and sometimes a jerk.
  • In the comics and other adaptations, Doctor Doom is a boisterous Large Ham. In The Avengers: Earth's Mightiest Heroes!, however, Doom is a very stoic person, being rather calm and collected, and never showing any emotion.
  • Most incarnations of Transformers's Blurr are heroic, brave, selfless, and honest. The one in Transformers Rescue Bots, however, is self-absorbed, self-serving, lying, and cowardly.
  • Lola Bunny in The Looney Tunes Show. Her original character in Space Jam is an exaggerated sex symbol whom Bugs is head over heels in love with, and in the show, she's an energetic Cloudcuckoolander who's excruciatingly infatuated by him.
  • Among the other changes to Hotstreak in Static Shock was a willingness to work with non-white people, including Talon (Latina), Shiv (Asian), Ebon (African-American), and Kangorr (Jamican). In the comics, Hotstreak was a racist bigot.
  • Cornelia from W.I.T.C.H., wasn't a Jerkass in the comics.
  • Phineas And Ferb Star Wars has a few. The most obvious is Isabella, who goes from a cheerful cutie to a cynical Han Solo Expy; it's so wrong that fans found it hilarious. Phineas and Ferb themselves are mostly the same (until Ferb is Sithinated), except that they're initially content to stay on Tatooine and not go on any adventures until the plot requires it. Also, instead of Isabella having a crush on the oblivious Phineas, he likes her while she's Tsundere.

Alternative Title(s): Adaptational Personality Change

http://tvtropes.org/pmwiki/pmwiki.php/Main/AdaptationPersonalityChange