History Main / RelatedDifferentlyInTheAdaptation

* In ''WesternAnimation/MeetTheRobinsons,'' Tallulah is Wilbur's cousin (specifically, Cousin Laszlo's sister), while she's his sister in Creator/WilliamJoyce's ''A Day With Wilbur Robinson.'' (He actually has two sisters in the book, but movie Tallulah is a CompositeCharacter).

* ''Film/{{Clueless}}'' has an unusual case in which the characters are technically no longer related. In ''Literature/{{Emma}}'' (upon which ''Clueless'' is loosely based), George Knightley is the brother of Emma's brother-in-law (her sister is married to his brother). In this film, Cher is an only child and the Knightley analog Josh is her ex-stepbrother (her father had since divorced his mother) who hangs around because he still has a good relationship with her dad.

*** John Diggle, the Arrowverse version of [[Franchise/GreenLantern John Stewart]], is Roy Stewart's adopted son instead of grandson.

*** ComicBook/WallyWest is Iris' [[LongLostRelative long-lost brother]] rather than her nephew like he is in the comics.

* ''WesternAnimation/StrawberryShortcake'': In the 2003 series, Apple Dumplin' is Strawberry's younger sister, but in ''Strawberry Shortcake's Berry Bitty Adventures'', she's Strawberry's cousin instead.

* In ''WesternAnimation/XMen97'' Jean is pregnant with Scott's child. In the comics by contrast, it was her clone Madelyne Pryor who bore his child making Jean technically more of an aunt. In fact this the first time ever that "main" Jean has ever been depicted as pregnant -- as every child she has is in the comics from her clone, AlternateSelf or [[DesignerBabies genetic material]] (as with Nate Grey) rather than from her womb directly.

** In both the comics and myths Thor’s daughter (Thrúd in Edda, [[AdaptationalNameChange Torunn in Marvel]]) is biological, [[spoiler: in ''Film/ThorLoveAndThunder'' his daughter Love is instead adoptive with her biological father Gorr giving her to him before dying. Though as a CastingGag she’s played by Creator/ChrisHemsworth actual daughter.]]

* ''Fanfic/LisaFitzgerald'': Lisa is the illegitimate daughter of Marge's CanonForeigner brother, making her Marge's niece and Bart and Maggie's cousin.

* The dub of ''Manga/ShamanKing'' changes Yuan/[[DubNameChange En]] from Ren's father to [[DubNameChange Len's]] uncle.

* ''ComicBook/DCComicsBombshells'': ComicBook/{{Supergirl}} is the result of HomosexualReproduction through two mothers. One is Alura In-Ze, her mother in regular continuity. The other is Lara Lor-Van, who is usually her aunt by marriage.

** In ''Literature/JourneyToTheWest'' Ox-King aka Bull Demon King is the husband of Princess Iron Fan, in ''Manga/DragonBall'' Chi-Chi, Iron Fan’s {{expy}} is Ox King’s daughter instead. Furthermore Sun Wukong was the [[BloodBrothers sworn brother]] of Ox King in the epic while Son Goku is Ox King’s son-in-law instead with Goku marrying Chi-Chi. Funnily enough in the book Wukong does disguise himself as Princess Iron Fan’s husband to fool her at one point.

** In the original comics, [[Characters/MarvelComicsMadelynePrior Madelyne Pryor]] was a clone of [[Characters/MarvelComicsJeanGrey Jean Grey]]. In ''ComicBook/XMenPhoenixLegacyOfFire'' Jena and Madelyne Pyre, the respective counterparts for Jean and Pryor, are sisters.

* ComicBook/{{Aquaman}} and Ocean Master have always been half-brothers. But in the Silver Age and Post-Crisis, they share the same father, [[DependingOnTheWriter whether Tom Curry or Atlan]]. Starting Post-ComicBook/InfiniteCrisis, every interpretation since has them share the same mother (Atlanna) instead.
* In ''ComicBook/DCComicsBombshells'', ComicBook/{{Supergirl}} is the result of HomosexualReproduction through two mothers. One is Alura In-Ze, her mother in regular continuity. The other is Lara Lor-Van, who is usually her aunt by marriage.
* ''ComicBook/HeroesRebornTheAvengers'' has ComicBook/TheVision as ComicBook/{{Ultron}}'s older "brother" rather than "son", having been created by ComicBook/AntMan before Hank made Ultron.
* ''ComicBook/TheMightyThor'': In Myth/NorseMythology, Odin and Loki are blood-brothers. The Marvel version makes Loki Odin's adoptive son instead, with his rivalry with his adoptive brother Thor being a major part of his character.
* ''Franchise/{{Batman}}'':

* In many adaptations of ''ComicBook/XMen'', Juggernaut and Professor Xavier are changed from step-brothers to half-brothers, including ''WesternAnimation/XMenEvolution'' and ''Film/Deadpool2''.
* IDW’s take on WesternAnimation/{{MASK}} changes the dead relative of Matt Trakker who invented the Masks from his brother to his father.
* In the original comics, Madelyne Pryor was a clone of Jean Grey. In ''ComicBook/XMenPhoenixLegacyOfFire'' Jena and Madelyne Pyre, the respective counterparts for Jean and Pryor, are sisters.
* ''ComicBook/{{Hound|2014}}'': Eva is revealed to be the estranged daughter of Skye when she leads her Kelpies to attack Skye's school. They correspond to Aífe and Scáthach in the Ulster Cycle of [[Myth/CelticMythology Irish mythology]], where they are sisters at war with each other.

* The ''Adopted Josuke AU'' by [[https://www.tumblr.com/hajnarus Hajnarus]] has [[Manga/DiamondIsUnbreakable Josuke Higashikata]] go from the HeroicBastard of [[Manga/BattleTendency Joesph Joestar]] to a distant relative of the Joestar family diverging from before [[Manga/PhantomBlood Jonathan's father George I]]. After the death of Josuke's parents, he is adopted by the [[Manga/StardustCrusaders Kujo family]] as they were his nearest relatives by both blood and geographic location, making Holly and Jotaro his adopted mother and brother respectively rather than his [[TangledFamilyTree half-sister and nephew]].

* ''[[https://archiveofourown.org/works/34059328/chapters/108606861 The Joestar Chronicles]]'': In ''Manga/JojosBizarreAdventure'', Giorno Giovanni was born when his father DIO had an affair while his head was attached to Jonathan's body, making Giorno Jonathan's biologic son while also considered DIO's child by spirit. In ''The Joestar Chronicles'', Giornata ([[GenderFlip Giorno]]) was born as a result of DIO having sex with a woman's corpse he forced Johanna's (female Jonathan) soul into, making him Giornata's biological father and Johanna as her mother spiritually.

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* In the original 1991 version of ''WesternAnimation/{{Rugrats|1991}}'', Buster and Edwin Carmichael were Susie's older brothers. In [[WesternAnimation/Rugrats2021 the 2021 reboot]], Lucy and Randy don't appear to have any children other than Susie, and when Buster and Edwin do appear in Season 2's "Baby Talk", they are depicted as Susie's cousins.

* In ''WesternAnimation/MeetTheRobinsons,'' Tallulah is Wilbur's cousin (specifically, Cousin Laszlo's sister), while she's his sister in Creator/WilliamJoyce's ''A Day With Wilbur Robinson.'' (He actually has two sisters in the book, but movie!Tallulah is a CompositeCharacter).

A subtrope of AdaptationRelationshipOverhaul. If the change results in a character moving forwards or backwards a few generations, it could result in an AgeLift too. It may also result in an AdaptationNameChange, especially in regards to surnames. See also RelatedInTheAdaptation, UnrelatedInTheAdaptation and PromotedToLoveInterest.

* ''Series/{{Cursed}}'': Traditionally Arthur and Morgana are maternal half-siblings. Here they appear to be full siblings or at least share the same father. Igraine is also mentioned as being their grandmother, rather than their mother, and Ector is their uncle-by-marriage rather than Arthur's adoptive father.

** ''Film/{{Thor}}'' establishes that the title character is now the son of Frigga; in the comics, he is her stepson.

* Film/XMenFilmSeries: [[https://comicbook.com/movies/news/x-men-movies-producer-confirms-mystique-azazel-father-daughter-connection/ According]] [[WordOfGod to producer Simon Kinberg]] Azazel from ''Film/XMenFirstClass'' is actually Mystique’s father, rather than her lover/baby daddy (Nightcrawler being their son) like in the comics with his off-screen death in ''Film/XMenDaysOfFuturePast'' supposedly adding an hidden extra layer of tragedy to when Raven finds out. Given the films’ timeline (as jumbled and inconsistent as it is) it would’ve probably been much simpler and logical to just use the comic version of their relationship, particularly given Mystique joins Azazel‘a team a few decades before Kurt (another devilish looking teleporter) makes his debut in ''Film/XMenApocalypse'' as a young man.

*** Thanks to being a CompositeCharacter with their respective mother and father, the siblings known as the Tornado Twins, XS and Impulse are Barry and Iris's children instead of grandchildren. This also changed XS and Impulse relationship as they're now siblings, not cousins as in the comics.

*** XS and Impulse are Barry and Iris's children instead of grandchildren.

* ''Fanfic/VowOfTheKing'': In the manga, Ichigo and Uryu were distantly related in some undefined way. Here, they're second cousins, with Masaki and Ryuken being first cousins.

** Because this continuity follows a "characters age in real time" gimmick, Barbara Gordon is Jim Gordon's granddaughter instead of his daughter, acknowledging that she made her debut in the 1960s. She is also therefore Tony Gordon's daugher, rather than his sister as she was on Earth-One.

* ''Series/SabrinaTheTeenageWitch'': In the original comics, Aunt Hilda and Aunt Zelda were [[HonoraryUncle Honorary Aunts]] to Sabrina: technically, they were really her mothers, since they accidentally created her by magic. In the sitcom, however, they're her actual paternal aunts. This change was subsequently [[{{Retcon}} retconned]] into the comics too, and carried over to ''WesternAnimation/SabrinaTheAnimatedSeries'' and ''Series/TheChillingAdventuresOfSabrina''.