History AdaptationalVillainy / UltimateMarvel

* ''ComicBook/UltimateXMen'':

** ComicBook/{{Quicksilver}} and ComicBook/ScarletWitch were willing servants of Magneto and hadn't abandoned their views of mutant supremacy, only joining the Ultimates for protection from Magneto. [[spoiler:Quicksilver also arranged the death of Magneto, kills Cyclops, and sold other mutants into slavery.]]

[[quoteright:350:[[Comicbook/SecretWars2015 https://static.tvtropes.org/pmwiki/pub/images/5248139_reedrichards4.jpg]]]]

** In the mainstream Marvel universe, Bruce Banner became Comicbook/TheIncredibleHulk after being exposed to radiation from an experimental gamma bomb while trying to save a teenager who'd accidentally wandered onto the blast site, and was CursedWithAwesome since then. Ultimate Bruce Banner managed to get the Hulk out of his system, but reinjected himself with it, fully knowing the potential consequences, to solve his self-esteem problems. His rampage in New York was a 9/11-like disaster.

** [[spoiler: Comicbook/BlackWidow is basically a reversal of her original counterpart, who started off as an evil Russian spy before reforming and becoming an Avenger. Here, she's introduced as a seemingly heroic defender of justice, but turns out to be a murderous traitor acting as TheMole for the Liberators. She even helps murder Hawkeye's wife and children, and later kills Tony's butler Jarvis.]]

* In the ''Comicbook/ShangChi'' comics, Leiko Wu is one of the title character's closet friends and allies. In ''Comicbook/UltimateMarvelTeamUp'', she's a villain who is trying to find Shang-Chi at the behest of his ArchnemesisDad.

** Jean [=DeWolff=], a heroic female police officer in the original, was made a corrupt double-agent working for the Kingpin in this version. Comicbook/IronFist also worked for the Kingpin, although he was blackmailed into it.

** ComicBook/MilesMorales, a hero, was first created in the Ultimate universe. ''ComicBook/SpiderMenII'' introduced the Miles Morales native to the 616-universe, a member of the Rigoletto gang and best friend of ComicBook/TheKingpin.

The ComicBook/UltimateMarvel Universe had many heroes reimagined as villains

** Magneto. While his mainstream incarnation is also a villain [[HeelFaceRevolvingDoor most of the time,]] he's a complex, morally ambiguous character, and has joined the heroes' side on numerous occasions. His Ultimate counterpart, on the other hand, is nothing more than a repugnant mutant supremacist and genocidal maniac who would never willingly join or aid the other side. In fact, he's such a monster that [[ImAHumanitarian he has eaten human flesh in the past]], and [[UpToEleven plans to turn humanity into literal livestock for mutants.]]

** [[spoiler: Comicbook/BlackWidow is basically a reversal of her original counterpart, who started off as an evil Russian spy before reforming and becoming an Avenger. Here, she's introduced as a seemingly heroic defender of justice, but turns out to be a murderous traitor acting as TheMole for the Liberators]]. [[spoiler: She even helps murder Hawkeye's wife and children, and later kills Tony's butler Jarvis.]]
** While the Ultimates are really the adaptation of the Avengers, the "Avengers" name is used for a black ops team of S.H.I.E.L.D., to make the dirty operations that the Ultimates can not be seen doing.

** Jean [=DeWolff=], a heroic female police officer in the original, was made a corrupt double-agent working for the Kingpin in this version. Comicbook/IronFist also worked for the Kingpin, albeit he was blackmailed into it.

** Unlike the PragmaticHero ComicBook/{{Venom}} would eventually become in the original, both the Venom Suit and Eddie Brock Jr. have none of the redeeming qualities of their 616 counterparts and are instead full villains. In this version the Venom Suit was created to be a cure for cancer by Peter's and Eddie's parents, however it ended up becoming a fully parasitic monster that forces it's hosts to feed it or be consumed themselves, while Eddie Jr. is a perverted and self-serving ConsummateLiar more than willing to become an almost mindless beast thanks to the power it gives him and the connection it has to his father.

** Longshot. Here, he's a member of the Brotherhood, whereas his mainstream counterpart was an ally of the X-Men's.

** ComicBook/MisterFantastic, a hero in the original [[ComicBook/FantasticFour comics]], becomes ComicBook/TheMaker, a major villain after undergoing a TraumaCongaLine.

** Jean [=DeWolff=], a heroic female police officer in the original, was made a corrupt double-agent working for the Kingpin in this version. [[ComicBook/ImmortalIronFist Iron Fist]] also worked for the Kingpin, albeit he was blackmailed into it.