Marvel Cinematic Universe
Films
Wait a minute...the suit is a different shade of red.
- While Red Skull's hair has been depicted as almost every other natural color (see comics examples), Captain America: The First Avenger has him played by the brown-haired Hugo Weaving (brown seems to be the only color his hair hasn't been in the comics).
- Scott Lang is a redhead in the comics, but Paul Rudd plays him with black hair in Ant-Man. His daughter Cassie also goes from having blond hair to brunette.
- Laura Barton is blonde in The Ultimates, but has dark hair in Avengers: Age of Ultron.
- Quicksilver's hair color is naturally white in the comics. While it is also white in Age of Ultron, Quicksilver had earlier appeared in The Stinger of Captain America: The Winter Soldier with brown hair. This would imply that he either dyed it white later, or that it was turned white by his powers.
- Nakia has dyed red hair in Black Panther rather than dark hair like she does in the comics.
- Batroc has black hair in the comics but light brown in Captain America: The Winter Soldier. His pointy goatee and curly mustache are also changed to a more subdued mustache and beard.
- Aldrich Killian had black hair in the comics, but blond in Iron Man 3.
- Guardians of the Galaxy:
- Drax the Destroyer has green skin in the comics, but this was changed to gray in the film.
- An odd case for Mantis in that she's a human in the comics that eventually turned green, but in the films she's an alien that retains her human skin color.
- Valykrie is once again hit with this, overlapped with Race Lift, in Thor: Ragnarok where she is played by Tessa Thompson, who is black.
- Avengers: Infinity War
- Thanos has blue Glowing Eyes of Doom in the comics, here he has human-looking blue eyes, like the Voldemort example in the film section it was likely an intentional choice to make him look more human therefore more terrifying. Funnily enough in The Stinger of The Avengers (2012) and Guardians of the Galaxy (2014) Thanos has glowing blue eyes like the comics.
- Cull Obsidian (known as Black Dwarf in the comics) has orange scaly skin, in the film however he’s instead got a greenish dark hide reminiscent of Godzilla.
- Gorr the God Butcher in Thor: God of Thunder (2012) has a white and black colour scheme thanks to the Necrosword, in Thor: Love and Thunder however he’s got human coloured skin that becomes all white with no black (except for his fingertip and mouth) when he picks up the Necrosword. Not to mention besides colour, the comic version of Gorr was more obviously alien, being a Frieza-esque extraterrestrial with head tails similar to a Twi'lek, while he’s a Human Alien in the film.
- Spider-Man: Homecoming Trilogy
- Liz Allan is blonde in the comics, but is played by the brunette Laura Harrier in Homecoming. Though to be fair, both The Spectacular Spider-Man and Marvel's Spider-Man have Liz be brunette as well, likely to visually differentiate her from Gwen Stacy.
- Betty Brant famously wears her brunette hair in a short bob. In the MCU it's long and blonde and even has a black hairband, making Betty look ironically similar to another iconic Spidey girl.
- The grey haired and elderly Aunt May from the comics is played by the youthful and brunette Marisa Tomei.
- Flash Thompson, who is usually blond, has darker hair and skin in the MCU. In Spider-Man: No Way Home however as a nod to the comics, he's dyed his hair blond.
- Michelle "MJ" Jones-Watson (who changed her first name from Mary to Michelle), being played by Zendaya has brown hair instead of the iconic red of comic Mary Jane Watson.
- Werewolf By Night:
- Jack Russel rather having blonde or strawberry blonde hair like the comics, has dark hair and being played Mexican actor Gael García Bernal has slightly darker skin too. To be fair, more recent comics have made Jack more of a brunette too.
- Elsa Bloodstone is a massive case of this, in the comics she’s a Fiery Redhead with a Tomboyish Ponytail. In the special however Elsa is very dark-haired like her actress Laura Donnelly, who wears her hair in a long Jessica Jones-esque style.
Live-Action TV
- Daredevil (2015): Matt Murdock is a redhead in the comics. In the show, Charlie Cox's Matt Murdock has reddish copper hair.
- Colleen Wing is a redhead in the comics, but Jessica Henwick keeps her natural black/dark brown hair in Iron Fist (2017).
- Krysten Ritter keeps her pitch-black hair in Jessica Jones (2015), despite Jessica having brown hair in the comics. Kilgrave's entire body was purple in the comics, but in the series, David Tennant's natural skin color is used and only the clothing he sometimes wears is purple. Trish Walker is also a blonde rather than a redhead (though she used to be a redhead back when she was the star of It's Patsy), as she's a Composite Character with Carol Danvers.
- In WandaVision thanks to an Age Lift Agatha Harkness goes from grey-haired to brunette. There's also Tommy, Wanda and Vision's son, whom in the comics has silver hair similar his uncle and grandfather. In the show, however, he's naturally brunette and just dyes his hair silver for Halloween.
- In the comics, Lady Loki has dark hair, the same as her male form. In Loki (2021), "Sylvie" - Loki's female counterpart - has blond hair, which along with her powers makes her a Composite Character of Lady Loki and Amora The Enchantress.
