Adaptation Personality Change

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Original image by soupandleaves. Used with permission.

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, Adaptational Villainy, Adaptational Jerkass, Adaptational Nice Guy, and Adaptational Dumbass 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. Dub Personality Change applies to when translations do this.

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


Example subpages:

Other examples:

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     Anime and Manga 
  • In Attack on Titan: Junior High, not only are characters Flanderized, due to the series being a Denser and Wackier High School Au story of Attack on Titan, but the titans are even given personalities (those that aren't already titan shifters), so they can cry, love, and be selfish (the main plot involves them constantly stealing lunches from humans).
  • 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 role in the anime; with little material for the anime production team to work off of at the time, the character was thus flanderized.
  • Classi 9 is a manga setting the most renown European composers in a private school, so of course there will be some of this. The worst offender is Beethoven, who went from being a grumpy old man to a soft and occasionally cheerful teenager. Tchaikovsky has also changed a lot, becoming a charming if not sometimes slightly disturbing, bisexual young man.
  • 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.
    • The Four Generals of the Dark Kingdom get very little characterization in the manga, being mostly one-off villains who are quickly dispatched by the Sailor Senshi. They are, however, shown to care about one another and express grief and anger over the deaths of their comrades. Not so in the '90s anime adaptation, which aside from Kunzite and Zoisite depicts them as rivals for Beryl's favor. Nephrite and Zoisite in particular have a vicious rivalry full of one-upsmanship and backstabbing which ultimately leads Zoisite to arrange Nephrite's death. The manga's backstory for the characters, which depicts them as noble members of Prince Endymion's court who were misled and corrupted by Beryl and Metallia, is also removed from the anime adaptation.
    • Minako has a much darker personality in Pretty Guardian Sailor Moon than she did in the anime or the manga.
  • Yu-Gi-Oh! (first anime series):
    • Hiroto Honda ws a completely different character 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.
  • Yu-Gi-Oh! ARC-V brought back characters from the previous series, Edo/Aster and Asuka/Alexis from Yu-Gi-Oh! GX, Jack and Crow from Yu Gi Oh5ds and Kaito/Kite from Yu Gi Oh Zexal. However, most of their personalities are different as they are alternate versions of the characters:
    • This version of Edo is much more hot-headed and has a short temper, while the original was cool, collected and a Deadpan Snarker.
    • Asuka is mostly the same, the only difference being her design.
    • This Jack Atlas is much more serious and is not surprised easily. Also he hasn't shown his love for cup-ramen.
    • Crow is much more cynical than his original counterpart.
    • Kaito is much more vengeful and aggressive. His ace monster "Galaxy-Eyes Cipher Dragon" is described as a god of vengeance, while his original ace, "Galaxy-Eyes Photon Dragon" was called the embodiment of light.
  • 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.
    • OVA!Priss wasn't shy about expressing her emotions, 2040!Priss was The Stoic, though still prone to shooting off her mouth while angry.
  • 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.
    • Also from Fate/stay night, Illyasveil von Einzbern was an evil Creepy Child. In Fate/kaleid liner PRISMA☆ILLYA, she is a Cheerful Child who until the first chapter/episode was living a normal life, and as a consequence is pretty much everything the original wasn't, like actually being much more heroic and much nicer. Becomes a plot point later, when Illya's original memories/personality were actually sealed by Irisveil, which later breaks free and manifests as Chloe von Einzbern.
  • Keiichi Maebara in Higurashi: When They Cry is notably more Hot-Blooded and 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 remain mostly the same in the anime and manga, 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.
  • Sonic X:
  • Dragon Ball
    • In the original Japanese version of Dragon Ball Z, Frieza is a sophisticated, regal, and superficially polite tyrant who only got angry after extreme provocation or when things were clearly not going his way, much like how he was in the manga. In the Ocean and Funimation dubs, he was an androgynous, tough-talking, brutish Smug Super with a Hair-Trigger Temper, a fondness for puns, and plenty of homoerotic undertones. It wasn't until Funimation's Kai dub that North American audiences got an English Frieza who had his original Japanese personality.
    • Goku himself is also characterized quite differently in Funimation's first dub. In Japanese, Goku is someone who cares deeply for his friends and family, but at the same time, he doesn't really care about the moral high ground or what's considered justice, and he admits that he often acts rather selfishly. Funimation's dub makes it so that while Goku still enjoys a good fight, he is a paragon of virtue who is ready to risk his life to defend the innocent and stand up for what is right. This has often drawn comparisons to most depictions of Superman.
    • Even though Goku Black appears in both the anime and manga adaptation of Dragon Ball Super, the two characters are so completely different towards each other that listing it will lead to a Wall of Text that is elaborated in his character page but to sum it up, Anime Black acts gracefully and is always shown to be calm even when losing a battle. Manga Black on the other hand, is a lot more hot-headed and acts like more of a Smug Snake bully who tends to beat up opponents like a brute and completely breaks down upon losing.
  • In the Ghost in the Shell anime movie, Major Motoko Kusanagi goes from a Really Gets Around Genki Girl to an introspective stoic who's Married to the Job. Ghost in the Shell: Stand Alone Complex combines both takes, keeping the Major's driven and professional nature from the movie, while also reintroducing the more playfully sarcastic and tomboyish aspects of her personality from the manga.
  • Di Gi Charat:
    • Dejiko is a spoiled Bratty Half-Pint in the original series and Nyo, but the All-Loving Hero in Panyo Panyo, which came in-between.
    • Rabi en Rose is a Jerkass rival idol to Dejiko originally, but came back as Dejiko's Butt-Monkey in Nyo after a mere cameo in Panyo Panyo, subject to her and Puchiko's antics when she's minding her own business, staring when they first meet her.
      • And then there's Winter Garden, in which Dejiko and Puchiko are both ten years older and much more mature than their previous incarnations.
  • Lyrical Nanoha:
  • In the manga adaptation of Cooking With Wild Game, Asuta is more perverted and constantly talks as if he's going to make a move on Ai Fa. In canon he's more concerned with the fact that he's just been thrown into a strange world, and so introverted that Ai Fa worries if he returns her feelings at all.

    Comic Books 
  • Max Ride: First Flight:
  • 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. Early on she was closer to her game personality but Executive Meddling caused her personality change.
  • Archie Comics' Sonic the Hedgehog:
    • In the US Sonic the Hedgehog comics 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 later issues tend to keep the cast far more loyal to their games incarnations, especially following the Soft 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 And 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 Manchild. It was believed that the characters would eventually grow into their more recognizable selves, but that didn't ever ever happen. After of three years of erratic scheduling... they did not.
  • Ultimate Marvel
    • Scarlet Witch and Quicksilver go from loving siblings who were maybe a little too close to full-blown incestuous lovers.
    • Pretty much everyone on the Avengers- sorry, Ultimates- is more of a jerk than they are in the mainstream comics.
    • Everyone on the Fantastic Four gets a dose. Sue is more sexually aggressive, Johnny is a Brainless Beauty, and Ben and Reed are both angstier. All of this can probably be attributed to their younger ages.
    • Mary Jane Watson goes from outgoing and flirty (with some repressed past baggage) to being somewhat nerdy and rather shy. On the flipside, Gwen Stacy becomes a rebellious punk who's quite troubled, even threatening bullies with a knife when their treatment of Peter gets out of hand.
  • 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 
  • Mobile Fighter Evangelion sees this does to a number of characters:
  • Calvin in Kingdom Crossovers seems to have had his personality pulled from The Calvinverse, being a focused Gadgeteer Genius badass rather than the normal, hyperactive little boy he was in Calvin and Hobbes.
  • Sora undergoes a radical change of personality in Digimon 02 The Story We Never Told compared to her original Digimon Adventure 02 counterpart. In canon, she adopts a more girlish personality after her original adventure like playing tennis instead of soccer, becoming Yamato Nadeshiko flower seller with little trace of her tomboyish personality, and as an adult, become a fashion designer. Here, she's a literal Fiery Redhead, becoming the captain of the girls soccer team, slapping Yolei when she gets hysterical, gives a "The Reason You Suck" Speech facing down Gargomon, and straight up punching Yolei, who was being a bitch and ridiculing Sora over her parents and her feelings for Tai.
  • Corrin Reacts: Quite a few characters, but Corrin and Silas in particular. Silas is more outgoing and excitable to act as the calmer and easygoing Kaze's Foil, while Corrin is less of a Sheltered Aristocrat than in canon and more of a savvy, clever planner. He also ends up being the leader of the Antic Order.
  • The Black Emperor: Because of the "Milly Effect", Lelouch is less angsty and more playful, and has a rather strong perverted side.
  • Clementine in Old Scars. While she is still the adorable badass we all know and love, she has become less tough and acts more like the child she is.
  • In The Stalking Zuko Series, there are a few examples, and some of the ones that don't fall into other tropes are as follows.
    • Hakoda's significantly more involved in his children's lives after the end of canon, for better or worse. This ranges from embarrassing but well-intentioned attempts to be a "cool dad," to trying to get Zuko to break up with Katara.
    • Downplayed with Pakku. He has mellowed out since "The Waterbending Masters," but still is fairly conservative in terms of his beliefs, such as that the Water Tribes' patriarchy isn't going to change in Katara's lifetime.
  • In Influence Out of Normality, Xander is changed from Book Dumb to Brilliant, but Lazy while Willow is a Bitch in Sheep's Clothing, particularly towards Xander. He notes at one point that Cordelia usually doesn't mean the mean things she says, while Willow always means it if she says something cruel.
  • Ranma is considerably more polite and responsible in Anything Goes Game Changer due to a chance meeting with Miya Asama and her agreement to become his sparring partner in exchange for acting as a handyman for her inn.
    • Downplayed with Genma who, due to having to train more to keep up with Ranma, has regained his pride as a martial artist. Ranma notes he's still far from The Paragon but he's a much better person than he'd otherwise have been.
    • Because Ranma sent a postcard to Ryoga, who also managed to get in contact with Miya, he knows Ranma didn't abandon their fight and so didn't follow him to China. As a consequence, Ryoga not only doesn't have a curse, he's a Friendly Rival to Ranma rather than an outright enemy.
  • A Brighter Dark does this for numerous members of the Fire Emblem Fates story. The exclusion of Anonkos allows readers to see a Garon who is less Omnicidal Maniac and more Well-Intentioned Extremist, living by an I Did What I Had to Do philosophy even at the expense of his familial relationships.
  • Akane in Ranma Saotome, Chi Master drops her Tsundere attitude and becomes a genuine Nice Girl after Ranma cleanses her of her anger-induced chi. Ranma himself is less misogynistic and antagonistic due to his Guru cleansing him a couple years before the story's start.
  • Rumplestiltskin in A Different Fate displays much more of a temper, resorting to tirades and destruction of his own property if anything sets him off.
  • We Are The Chatroom Gems has quite a few cases of this:
  • As Dark Mage of Ylisse herself notes, there are significant differences in how she portrays Yellow Diamond and her Pearl (who will be referred to as Limone) from fic to fic.
    • Mafia!Yellow is a villainous figure, but has some redeeming qualities. Chatroom!Yellow is an abusive, homophobic, unrepentantly vile woman whose only redeeming quality is her love for her birth daughter. Arcane!Yellow is someone driven to a murderous rage by circumstance. And finally, Wings!Yellow is a broken shell of a woman who, though snarky, actually wants to help people.
    • Mafia!Limone is a good girl gone bad. Chatroom!Limone is a child who acts like a brat because she doesn't know any better yet. Arcane!Limone is an outright murderer, though she can still change. Last but not least, Wings!Limone is ashamed of who she is and hides it pretending to be a jerk.
  • Pokémon Reset Bloodlines has done this to several characters:
  • In the Lucky Star fanfic Starbound, Mondo, originating from Mon Colle Knights as simply upbeat and casual, is flanderized to be "cool", in direct contrast to Miyuki upon first meeting her and appearing himself. His habit of hitting up on girls is also gone, even though he does brag to two different parties about having spent a night with a whole bunch of girls at Rokuna's house.
  • To Hell and Back (Arrowverse): Several, due to the nature of the premise of the story.
    • Oliver Queen is a Nice Guy, compared to the Jerk with a Heart of Gold he is in canon. He's also not a playboy in this timeline, largely because he was stranded on Lian Yu before he could really get into the 'party boy' lifestyle, and had his emotional growth in that area stunted.
    • Barry Allen is The Gadfly, being far more confident and abrasive than he is in canon; nowhere near the socially awkward geek that is his canon portrayal. He's also far more comfortable with the 'gray' and 'dark' aspects of being a vigilante.
    • Kara Danvers is more maternal and mature than her canon counterpart, due to being able to fulfill her role as Kal-El's caretaker, and, like Barry, is much darker. That being said, of the three leads, she is the closest to her canon portrayal.
    • Laurel Lance is more-or-less the same person she is in canon, though she is a far kinder and understanding to Oliver than she was in Arrow — mainly because, in this timeline, she and Oliver did not date prior to his disappearance. The same applies to Quentin Lance, who is still fond of Oliver since he never cheated on Laurel with Sara, or took Sara on the Gambit with him.
    • Speaking of Sara, on top of being Demoted to Extra, she's also a lot more lighthearted, since she never became a member of the League of Assassins.
    • Thea Queen, instead of being a Bratty Teenage Daughter, is instead a lot more down-to-earth and a bit sheltered thanks to her parents' overprotectiveness after Oliver's disappearance.
    • Iris West is a lot more colder and withdrawn, due to Barry's disappearance and her estrangement with her father. That being said, she starts reverting back to a personality closer to her canon one thanks to Barry's return.
    • Eddie Thawne is a lot more hostile to Barry, perceiving him as more of a threat to his relationship with Iris than his canon counterpart did, and Barry's new personality isn't helping matters. He's also a lot more obsessed with catching the Flash than he was in canon due to the Flash being less "superhero" and more "vigilante", which puts a strain on his relationship with Iris.
    • Slade Wilson is closer to his post-Season Five portrayal straight from the beginning, due to be injecting with a serum that negated the Mirakuru's insanity-inducing effects.

    Films — Animation 
  • 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 adventurous 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 Wind in the Willows half of The Adventures of Ichabod and Mr. Toad, Ratty is changed from the book's laid-back, free-spirited sailor into a stuffy, proper English gentleman.
    • 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. Also, the mermaid in the original story is a demure Fragile Flower, repeatedly mentioned to be very quiet and thoughtful. Disney's Ariel is energetic, rebellious, anything but demure.
    • 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). Of course, in the book Frollo is the Archdeacon, making this a case of the Decomposite Character.
    • 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.
  • Disney Fairies:
    • Tinkerbell is toned down in Disney Fairies compared to Peter Pan. She isn't clingy and a jerk anymore, instead being a Plucky Girl. She keeps some of her jealous aspects in the books, though.
    • In the transition from page to screen, many other characters had their personalities changed as well. Most notably, Vidia became rude at worst and outright friendly at best; in the books, she once sold out her entire race because she was in love with a dragon, stole a wand others risked their lives to get, and was, in general, more of a Jerkass.
    • A less obvious example is Queen Clarion. Most of her Action Girl characteristics from the books were taken away and given to other characters, her duties were lessened with the addition of the Ministers, and she got a love interest with a tragic backstory, despite never expressing an interest in romance. She was also made much more motherly and removed from the main plot line, when she had previously been a main character.
  • Toy Story 2 and Toy Story 3 depict Barbie as a peppy Genki Girl and, in the case of the latter, a Genius Ditz. Barbie is The Ace (just look at all the jobs she's had) but she's never been particularly energetic in the toy line. It wasn't until the Self-Parody Barbie: Life in the Dreamhouse that something similar to Toy Story's depiction was seen in the Barbie line.

    Films — Live-Action 
  • Carrie
    • In Brian DePalma's version, 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. Though this only really applies from the third movie on, after Michael Gambon took the role due to Richard Harris' death.
    • 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, without the more realistic flaws of the book version.
    • Professor Snape's Jerkass traits are toned down, and he's more cold and stoic than his violently emotional book counterpart.
  • 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.
  • A Series of Unfortunate Events (2004): Count Olaf 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.
  • DC Extended Universe:
    • In the comics, both Superman and his adopted father Jonathan Kent are very idealistic and optimistic people, hoping for the best in people. In this universe, Jonathan was pretty paranoid because of Clark's origins as an alien and felt The World Is Not Ready for Clark. As a result of this and constantly being a Hero with Bad Publicity despite his efforts, this version of Clark is also more angsty and brooding about his place in the world. In response to the negative reaction these changes garnered, Superman's personality is significantly realigned in Justice League in order to bring him more in line with his classic portrayal.
    • 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. (This is part of the confusing history between her and Ursa, Zod's usual Dark Mistress; basically, they're Decomposite Characters whom this movie combined back together.)
    • Lex Luthor is very different than the comic version, being portrayed as a sort of Psychopathic Manchild; apparently the idea was to modernize him as an eccentric young tech billionaire, but most fans find him much less threatening than the usually calm Magnificent Bastard that he is in most modern adaptations.
    • Much like in Tim Burton's film, Batman is more open to the idea of lethal force. This version for a time also branded rapists and human traffickers for other criminals to target. However, he begins to undergo Character Development that sees him backing off these more extreme methods and becoming closer to his comic counterpart. Superman's resurrection via the Genesis Chamber and a Mother Box in Justice League (2017) is something Bruce decided, as opposed to his traditional opposition to the use of the Lazarus Pit in the comics.
    • In Ares is a Well-Intentioned Extremist as he views humanity as destructive and thinks wiping it out would help the world. Additionally, he's more Affably Evil toward Wonder Woman even after The Reveal.
    • In the comics, the Barry Allen version of The Flash doesn't have a particularly notable personality, and in fact has a long-standing reputation for being The Generic Guy. The movie version of Barry is the League's Plucky Comic Relief, and is also very neurotic and antisocial to boot.
    • Aquaman is a Boisterous Bruiser, not unlike his Brave and the Bold counterpart.
  • Captain Kirk of Star Trek: The Original Series is not the same Kirk as the one from rebooted movies. The Continuity 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).

    The third film, Star Trek Beyond, depicted him in a manner virtually identical to his TOS characterisation, losing all the less sympathetic and more controversial elements of his earlier reboot portrayal. This could be justified in-canon as him maturing after a couple of years in command of the Enterprise.
  • Marvel Cinematic Universe:
    • Every hero in the 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.
    • 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.
    • Captain America: Civil War:
      • Helmut Zemo in the comics was, originally, a Neo-Nazi after having been brought up as one by his father, something left out of the film. The character had gone through Character Development in the 2000s to erase this aspect of his character so he could undergo a Heel–Face Turn (which unfortunately didn't last), which is where the film seems to draw on, while lacking the non-Nazi-related fascist views he'd develop after returning to villainy. Zemo in the comics also has a penchant for forming teams of superhumans to follow his whims, but in the film he euthanizes the sleeping Winter Soldiers and makes it clear he detests the idea of having more superhumans in the world.
      • In the Civil War comics, Black Panther was against registration and sided with Captain America on the issue. In the film, because the triggering event of the Accords is the deaths of Wakandaian emissaries and furthered by Cap helping Bucky Barnes, who T'Challa thought killed his father, when really it was the aforementioned Zemo, T'Challa is for registration and assists Iron Man. He's also more hotheaded and impulsive than his comic counterpart (who is usually The Stoic), though he shows signs of moving closer to his classic characterization by the end of the movie.
    • Black Panther:
      • Princess Shuri is a Gadgeteer Genius and helps design and implement much of the new technology in Wakanda, effectively making her Black Panther's Q. This is a complete 180 from her comic counterpart, who is very spiritual and heavily tied to the mystical aspect of Wakanda. In fact, the comic version of Shuri is probably even more spiritually-inclined than her brother.
      • T'Challa himself continues this into his own movie, being more emotionally open, whereas, again, his comic counterpart was The Stoic.
    • Thanos in the comics was a nihilist in love with the Anthropomorphic Personification of Death. In the MCU, he's a Well-Intentioned Extremist who's trying to prevent an Overpopulation Crisis and wars over resources.
  • X-Men: Apocalypse changes the already-established characterizations of certain characters from earlier in the series. This was probably a deliberate attempt to show how they'd turn out in the altered timeline created in the previous movie.
    • 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 a scowling Creepy Child and the boy, Pugsley, is usually smiling. 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.
  • The Amazing Spider-Man Series:
    • 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. Additionally, as he's dying, he asks Peter to stay away from Gwen for her own safety, whereas comics!George asked Peter to look after her.
    • In some ways, Gwen Stacy is the opposite of her comics counterpart, including being accepting of Spider-Man and not blaming Spdiey for her father's death as her classic and Ultimate Marvel counterparts did.
  • In the graphic novel Watchmen, Silhouette was rather unpleasant and vaguely racist and she was killed after her identity was exposed. In the Watchmen movie, she is a homosexual martyr.
  • Hannah Swensen: Moishe and Delores (her cat and mother, in order), can barely interact, even over the telephone... let alone when Delores is there in person. The best that can have expected is Clothing Damage. But in the film adaptations, almost none of this happens.
  • Who Framed Roger Rabbit massively changed virtually every main character's personality from Who Censored Roger Rabbit? The biggest example of this is Jessica Rabbit who goes from a cold-hearted Femme Fatale who marries Roger only because she was magically compelled to do so by a genie and promptly dumps him for a rich man when the wish expires in the book to a subversion of the Femme Fatale archetype who turns out to genuinely love Roger.
  • Conan the Barbarian (1982)
  • Spider-Man Trilogy:
    • Peter Parker himself is more moody both in-costume and out, generally being less prone to make jokes than the Peter of the comics, and is even an Extreme Doormat out-of-costume, whereas even in the early stories, Peter had a chip on his shoulder and was more confrontational.
    • In part due to being a Composite Character with some of Peter's other love interests, Mary Jane Watson is more somber and reserved, whereas the comics version was witty and charming, and ease Peter up when he gets too serious.
  • Power Rangers (2017)
    • Jason is the closest to his series counterpart, as while Kimberly was materialistic early on, this version is a former Alpha Bitch who had a Heel Realization after humiliating one of her friends; Billy and Trini are now respectively autistic and questioning her sexuality with the issues that come with those, with Trini additionally being far more snarky; and Zack is a "bad boy" who fears his mother dying from her illness.
    • Zordon is more morally ambiguous, as he's originally trying to use the Rangers to resurrect himself, though he ultimately decides against this and uses his chance to come back to revive Billy after Rita kills him instead.
    • Rita lacks many of her series counterpart's more comedic traits.
  • Tomboyish, Deadpan Snarker Leslie from the 1970s book Bridge to Terabithia becomes a Blithe Spirit Girly Girl Cheerful Child in the 2007 film.

     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 empathetic 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.
  • 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.
  • Along with being better looking, the characters of Rizzoli & Isles are practically a 180 from their counterparts in the books, where Maura is an ice queen, Jane is brusque and abrasive, Korsak is a loud mouthed jerk, Frost is a wimp, and so on.
  • Several characters from the Land of Oz books are subject to this in Emerald City:
    • The Wizard is less charming and more dour and menacing than in many other versions of the story.
    • Glinda is more manupulative and cold.
    • West is not a Card-Carrying Villain as usual, but a more troubled individual.
    • East seems to have been a beloved ruler rather than an oppressive one, despite her hand in creating the Prison of the Abject. The Munja'kin almost vote to execute Dorothy for her death, and end up exiling her from their territory forever.
  • Olaf's troupe from Netflix's adaptation of A Series of Unfortunate Events (2017) aren't as evil as they were in the books, especially the Hook-Handed Man. Instead of being children haters like their boss, they appear to be more concerned for the children's well-safety (maybe) when they see see Olaf hold Sunny high above the table and strike Klaus in rage. Originally in the book, they applauded Olaf for the latter.
    • Madame Lulu/Olivia Caliban also gets this treatment - in the books, she is on neither side, eventually selling the Baudelaires out to Count Olaf; in the series, her role is expanded so that she is featured from The Austere Academy onwards, and she is entirely on the side of the Baudelaires.

     Radio 
  • In The Hitch Hikers Guide To The Galaxy novel And Another Thing..., Left Brain (Zaphod Beeblebrox's detached second head) is The Spock and resents all the time he's been subsumed by Zaphod's wild and often stupid primary personality. In the Hexagonal Phase of the radio series, while still more intelligent than the remaining head, he's a lot more Zaphod-like. Presumably because if you cast Mitch Benn because of how he played Zaphod in the stage show, you want him to actually play the character that way.

     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.
  • Batman: Arkham Series:
    • Jason Todd in Batman: Arkham Knight. Whereas his comic counterpart (at least pre-New 52) 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 (again, pre-New 52 only) 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.
  • The Renee Montoya of Batman: The Animated Series and the comics was a supporter of Batman. In Batman: The Telltale Series, she's against the Batman and even tries to arrest him, though she's sympathetic to him as Bruce Wayne.
  • While it's hard to get a grasp on personalities in Super Smash Bros., some characters are still presented differently than they are in their home-series:
  • The comic of Team Fortress 2 generally tones down the characters' personalities (though the Soldier gets Flanderized) - Heavy and Spy go from a boisterous Blood Knight and a smarmy Jerk Ass (respectively) to being almost 100% serious, for example. The Catch-Up Comic attributes these differences to the game being a documentary portraying the events of the comics.
  • When he created Spider-Man 2099, Peter David decided to make Miguel O'Hara a Contrasting Sequel Main Character, keeping quiet and being serious when as Spider-Man. Spider-Man: Shattered Dimensions presents its version of Miguel in a manner similar to most Peter Parker, quipping and making jokes in costume.

     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 
  • Notably, almost every new incarnation of the Felix the Cat series completely overhauls his personality.
  • 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.
  • 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.
  • Back to the Future: Marty McFly. He went from Book Dumb in the films to The Ditz in the series.
  • Daisy Duck is usually the responsible and down-to-earth foil to Donald, but in Mickey MouseWorks and House of Mouse, she became a self-centered kook who obliviously makes things difficult for her friends.
  • In Ben 10 (2016), while Gwen Tennyson is still more mature than her cousin Ben (continuing to serve as the voice of reason), she is far more likely to join in on his more questionable schemes and misadventures, and is generally more friendly and outwardly supportive towards him. This is in stark contrast to the regular Hypocritical Heartwarming at play in the original 2006 series.
  • The Looney Tunes Show:
    • Daffy Duck. In the original shorts - at least, in his most iconic personalities - he was fairly intelligent and clever, but occasionally gullible and was often defeated due to his greed and selfishness. Here, he's a lazy idiot who can't do anything right.
    • Lola Bunny. 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.
  • 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 were released on VHS. However Ruby did start becoming more cheerful in later entries of the books.
  • 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.
  • In the animated CGI Peter Rabbit series. Peter Rabbit and Benjamin Bunny are a lot more tolerable and caring then they were in the original books. Especially Benjamin Bunny, who was a greedy jerk in the book whereas CGI Benjamin is more of a kind-hearted Lovable Coward.
  • 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.
  • All the three main characters of The Powerpuff Girls (2016):
    • Blossom. She is still "the smart one" but her Wise Beyond Their Years and Child Prodigy traits are downplayed. She's not nearly The Leader she was before and she doesn't understand certain things, such as her thinking colts are young horses and fillies are "horses with attitude".
    • Buttercup's aggressiveness has been upped. She does a lot of the fighting and is angrier than in original show, to the point where an episode has her sisters essentially staging an intervention to get her to calm down after she goes into a berserk rage where she severely destroys a festival and gives Bubbles a black eye. Even outside of fighting she does things like being the Class Clown when in the original continuity she only did that alongside other kids.
    • Bubbles is Cute But Psycho instead of being cute and sweet. She's incredibly prone to random bouts of anger for comedic reasons.
  • In the Tiny Toon Adventures episode "Buster and Babs Go Hawaiian", Plucky and Hamton apparently swapped personalities: Hamton being a prima donna who's upset over being upstaged by Buster and Babs, and Plucky being a doormat.
  • Scooby-Doo franchise:
    • Scooby.
      • In the live-action movies he is really more of a dumbass.
      • In Scooby-Doo! Mystery Incorporated he is more jerk (mostly when competing with Velma in their jealous rivalry for Shaggy's attentions), which adds to the attempt in developing the characters. He got better, of course.
    • Fred was originally the second smartest in the gang but has Taken a Level in Dumbass ever since Daphne started becoming more competent. Essentially Daphne took a good portion of his leadership skills and intelligence. Some incarnations Flanderize this even more. Mystery Incorporated give back his intelligence but made him completely oblivious to Daphne's affections.
    • In Be Cool, Scooby-Doo!, this happens to Daphne, rendering her a Cloud Cuckoolander compared with previous incarnations, although she remains very competent and courageous.
    • Velma in Scooby-Doo! Mystery Incorporated. She is more cynical, self-centered, vain, and sarcastic, similar to the titular protagonist of Daria. Most of these changes however, are to do with her being written a lot more like an actual teenager would act.
  • A lot of Sonic the Hedgehog adaptations do this. Perhaps most notably, Sonic Satam turns Dr. Ivo "Eggman" Robotnik from a clownish Ineffectual Sympathetic 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.
  • 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.
  • Teen Titans:
    • Teen Titans features Starfire as more naive, innocent, and insecure, as opposed to the hotheaded and forceful Starfire of the comics. The Cyborg of the comics is also less laidback than his animated counterpart. Mento of the Doom Patrol, as virtue of elements of the Chief fused into him, is more obsessive and unforgiving.
    • All of the Titans on Teen Titans Go! barring Raven have notably had their intelligence taken down a notch from the original Teen Titans. In Cyborg's case, it's to complement Beast Boy already being Book Dumb and to set them up as Those Two Guys.
  • 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, 2012 Cartoon - Kiddie Kid.
    • Raphael: Mirage Comics - violent, 1987 Cartoon - wise cracker, Film - brooding, 2003 Cartoon - gruff, 2012 Cartoon - Big Brother Bully With A Heat of Gold.
      • 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.
  • The Fimbles in the series the Fimbles are friendly and vegetarian, while in the book that inspired it Lucy Anna and the Finders, they are much more agressive and threaten to eat Lucy Anna multiple times.
  • 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).
  • Time Warp Trio the TV show adaption made Joe, Sam and Fred far less snarky and selfish than they were in the book series. Sam also wasn't so cowardly in the book series and neither was Freddi. Jodie is portrayed as more of a Valley Girl in the Television adaption (though this is toned down a lot in later episodes).
  • 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. By contrast, the G1 version of Blades was a violent jerk, while his Rescue Bots counterpart is a timid but friendly bot who can overcome his fear when he's needed .
  • The Harry Osborn shown in Ultimate Spider-Man is probably the nicest version of the character in existence - not only is he happy to be working with Spider-Man, but when Spidey reveals his identity to him, he's shown to be even more prouder to be working alongside him. Most other Harrys would have been distrustful and react with disgust.
  • Young Justice made many such changes, some of them highly controversial:
  • When Miles Morales made his debut in the Ultimate Marvel universe, he was reluctant to use his powers, only doing so after the Peter Parker of his universe died. Additionally, he was a Cowardly Lion, getting scared easily. Marvel's Spider-Man sees him jump at the chance to be a superhero and start off pretty cocky.
  • DuckTales (2017) has a bunch of these:

Alternative Title(s): Adaptational Personality Change

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