History Main / UnrelatedInTheAdaptation

* ''Literature/ThrawnAscendancy'': In ''Literature/StarWarsLegends'', Thrass was Thrawn's biological brother, and the two were adopted together into the Mitth family. In the rebooted continuity, they're actually from different biological families, through both get adopted into the Mitth and grow to view each other as brothers anyway (Chiss families being more like political organizations with thousands of "relatives" it's unusual for two to bond that closely, and using the title of "brother" is seen as a big deal).

* ''WesternAnimation/{{Gargoyles}}:'' While it never came up in the show, WordOfGod says that in this continuity, Morgana le Fay is a {{Changeling|Tale}}, and thus only Arthur's "adoptive" half-sister; however, he does not currently know the truth. Nimue is apparently the child with whom she was switched, and thus [[RelatedInTheAdaptation Arthur's biolgical half-sister in this version]]. [[invoked]]

** ''Series/Supergirl2015'': The Daxamite hero Mon-El and the Kryptonian House of El. Although he had no actual biological relationship to them in the comics, he was treated as a surrogate brother by Superman and that is why he adopted the name "Mon-El" (his birth name being Lar-Gand). In the show, this relationship with Superman doesn't exist. Yet he still goes by Mon-El, which is now his real name, with no explanation for why he has the same last name as Superman and Supergirl.

** [[spoiler:WordOfGod from Jane Espenson, however, indicates that the Eights were based on Adama's deceased older half-sister Tamara seen in the prequel series ''Series/{{Caprica}}'', so Athena actually was related to Adama and Apollo without any of them knowing it]].

* ''WesternAnimation/{{Gargoyles}}:'' While it never came up in the show, WordOfGod says that in this continuity, Morgana le Fay is a {{Changeling|Tale}}, and thus only Arthur's "adoptive" half-sister; however, he does not currently know the truth. [[RelatedInTheAdaptation Nimue is apparently the child with whom she was switched]].

** ''Series/Supergirl2015'': The Daxamite hero Mon-El and the Kryptonian House of El. Although he had no actual biological relationship to them in the comics, he was treated as a surrogate brother by Superman and that is why he used the name "Mon-El" (his birth name being Lar-Gand). In the show, this relationship with Superman doesn't exist. Yet he still goes by Mon-El, which is now his real name, with no explanation for why he has the same last name as Superman and Supergirl.

** ''Series/Supergirl2015'':
*** The Daxamite hero Mon-El and the Kryptonian House of El. Although he had no actual biological relationship to them in the comics, he was treated as a surrogate brother by Superman and that is why he used the name "Mon-El" (his birth name being Lar-Gand). In the show, this relationship with Superman doesn't exist. Yet he still goes by Mon-El, which is now his real name, with no explanation for why he has the same last name as Superman and Supergirl.

* Lieutenant Sharon Agathon in ''Series/BattlestarGalactica2003''. She has the callsign Athena, which makes her the counterpart to Admiral Adama's daughter Lieutenant Athena in ''Series/BattlestarGalactica1978'', but here there's no biological relationship to Adama and his son Apollo at all. In fact, this Athena is an instance of the Number Eight model of humanoid Cylon.

* Lieutenant Sharon Agathon in ''Series/BattlestarGalactica2003''. She has the callsign Athena, which makes her the counterpart to Admiral Adama's daughter Lieutenant Athena in ''Series/BattlestarGalactica1978'', but there's no relationship at all. In fact, this Athena is a copy of the Number Eight model of humanoid Cylon.

** In another cross-show example, Roy and Jim Harper. In the comics, they are nephew and uncle respectively. On TV, Roy is a regular character on ''Arrow'' while Jim's a guest character on ''Supergirl'', and not only did they never even met, but they exist on different parts of TheMultiverse.

[[folder: Radio]]

* In the ''ComicStrip/RupertBear'' comic strip, Jack Frost is King frost's son and Billy Blizzard's cousin. All three characters appear in the [[WesternAnimation/{{Rupert}} animated adaptation]] and either interact or mention each other, but there is zero reference to any of them being related.

*** ContinuitySnarl/DonnaTroy is no longer Diana's adopted sister, and has been made an [[AdaptationalVillainy adaptational villain]] rather than Franchise/WonderWoman's ally.
*** In the original myths, and all previous iterations of the comics, ComicBook/{{Ares|DC}} was Hippolyta's father and thus Diana's grandfather, which is not the case here.

* ''Film/TheDeep'': Kevin and Treece are cousins in the book, but seem to just be friends in the film.

* Likewise, Characters/PowerGirl was originally the Earth-2 version of Comicbook/{{Supergirl}}, making her the cousin of her world's Superman. After ''Comicbookbook/CrisisOnInfiniteEarths'' combined Earth-1 and Earth-2 and removed most of DC's other Kryptonian characters as part of Creator/JohnByrne's ''Comicbook/TheManOfSteel'' reboot, Power Girl was reimagined as an Atlantean unrelated to Superman.

* Likewise, Characters/PowerGirl was originally the Earth-2 version of Comicbook/{{Supergirl}}, making her the cousin of her world's Superman. After the ''Crisis'' folded Earth-1 and Earth-2 together and removed most of DC's other Kryptonian characters as part of Creator/JohnByrne's ''Comicbook/TheManOfSteel'' reboot, Power Girl was reimagined as an Atlantean unrelated to Superman.

* Likewise, Characters/PowerGirl was originally the Earth-2 version of Comicbook/{{Supergirl}}, making her the cousin of her world's Superman. After the ''Crisis'' folded Earth-1 and Earth-2 together and removed most of DC's other Kryptonian characters as part of Creator/JohnByrne's ''Comicbook/ManOfSteel'' reboot, Power Girl was reimagined as an Atlantean unrelated to Superman.