Marvel Comics Characters Who Were Done Dirty In The MCU

In the MCU, Quicksilver and his sister, the Scarlet Witch, were born in the war-torn region of Sokovia. After mortars destroyed their home, they were able to see that the weapons being used against them were created by Stark Industries, inspiring a hatred of Tony Stark in the twins. 

This set them on a path to Hydra, where Baron Strucker experimented on the twins and gave them incredible powers. They used these powers to join up with Ultron to exact revenge on Stark. Eventually, they switched sides, and Quicksilver lost his life in the battle with Ultron. His sister went on to become an Avenger, but his story sadly came to an end. 

In the comics, Quicksilver is the son of Magneto and a member of the Brotherhood of Mutants. Along with his sister, he defected from his life of evil and joined the Avengers, serving as a member of the team for years. Sadly, his tenure was cut all too short in the MCU. 

Sif is an important figure in the life of Thor Odinson, but not so much in the MCU adaptation. Sif is in the first two Thor films, albeit in a fairly small role, but was completely left out of Thor: Ragnarok. There's no writer, director, or meddling executive to be blamed for this slight, though. Jamie Alexander just didn't have time to be in the film. She did have time to make a few appearances on TV with the Agents of S.H.I.E.L.D., though. 

Luckily for the comic book version, there are no scheduling issues that can keep Sif away from being one of Thor's truest and most powerful allies. Most recently, Sif has taken over as the Guardian of the Bifrost, the role Heimdall occupied in the MCU. 

Tony Masters is the Taskmaster of Marvel Comics, and he doesn't take any crap from anyone. The skull-faced mercenary can replicate the physical skills of anyone he sees due to his "photographic reflexes." Yes, comic books are weird, dumb, and great all at the same time. Anyways, Masters is always out for himself and has been a thorn in numerous superheroes' sides over the past 40+ years. He even teaches superpowers to others from time to time to make money.

Antonia Dreykov is the Taskmaster of the Marvel Cinematic Universe, and her life story is much more depressing than Tony Masters's. Marvel Studios ended up making the MCU Taskmaster much more sympathetic, but also sort of turned the character into a less menacing shell of the comics version in the process. Olga Kurylenko hardly even gets to say anything at all in Black Widow, and her character is just a silent assassin for the majority of the movie.

Nova (Richard Rider) is one of the greatest heroes in Earth-616's corner of the Marvel Comics cosmos. He's a part of the super-powered space militia of the planet Xandar, and the Nova Corps is a lot cooler than what you saw in Guardians of the Galaxy. Think of them as Marvel's answer to the Green Lanterns, except instead of rings that allow them to project energy from their minds, they have helmets that turn them into "human rockets." 

Guardians of the Galaxy - a film with a tree as a main character - apparently decided that the comic book version of the Nova Corps is still too campy for the MCU. The filmmakers replaced the corps fans know with an unrecognizable army who only share a vague aesthetic resemblance to their comic counterparts. And Richard Rider? Nowhere to be seen. It's a real shame, as he's a frequent ally to the Guardians in the comics and even gave his life (for a while - it's the comic book world) while fighting Thanos on a dying planet with Star-Lord.

Maria Hill has appeared in five MCU films and three episodes of the Agents of S.H.I.E.L.D. TV show. Throughout her MCU tenure, the plot has never centered on her. She has always been a supporting player without a whole lot to do. It's not that she doesn't get enough screen time; it's just that she's never had a real character arc or meaningful plot point other than backing up Nick Fury while he saves the day. To twist the knife even further, by the time she starts showing some actual depth in Disney+'s Secret Invasion and could further examine her character, she's killed off at the end of the premiere episode thus squandering a great opportunity.

In the comics, following Fury's involvement in an unsanctioned attack on Latveria, Hill became the director of S.H.I.E.L.D. Throughout Brian Michael Bendis's run on the Avengers comic, the weight of this title, and the stress on her, is made clear. When she's on the page, her decisions and choices are genuinely meaningful. Desperate to prove herself to be different than Fury before her, Maria Hill is dogged in her mission to hold superheroes accountable. She is a stark defender of the Superhero Registration Act and was on Iron Man's side in the "Civil War" comics event, eventually giving her position as S.H.I.E.L.D. director over to Stark himself.

Janet van Dyne is an Avenger through and through. After getting extraordinary powers from her scientist husband Hank Pym (AKA Ant-Man), she became a founding member of the Avengers. She served as a member of the team for years and even became the chairman at one point. 

In the MCU, Janet is left out of The Avengers entirely. With the Ant-Man films choosing to focus on the second Ant-Man, Scott Lang, she didn't even appear in those until Ant-Man and the Wasp. She was an agent working for S.H.I.E.L.D. but became lost in the Quantum Realm after sacrificing herself to stop a missile. She was eventually rescued by Lang and co. and will presumably appear in future MCU movies, but this doesn't make up for what Wasp could have been in the franchise.