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From original X-Men and Brotherhood of Evil Mutants members to some of the biggest mutant names in Marvel Comics, here is a look at powerful mutants who also served on the Avengers teams.
10) Firestar

Firestar is one of the rare Marvel Comics characters who was introduced on a Marvel cartoon before appearing in comics. Her first appearance was as an original character in Spider-Man and His Amazing Friends in 1981, and then she was introduced into comics in 1985. She was a teenage mutant who had fire control mutant powers, and Emma Frost recruited her for the Massachusetts Academy, where she became part of the Hellions.
Firestar ended up becoming a hero over time, and she joined the New Warriors after leaving the Hellions and before she joined up with the Avengers, along with her New Warriors boyfriend, Justice. While she started as a reserve member, she soon moved up to a full membership role. She eventually left the team after a short time, never feeling comfortable in the lineup. Firestar retired during the Civil War storyline rather than signing the Superhuman Registration Act, although she has since returned to action.
9) Beast

Arguably, the most notable early mutant member of the Avengers was Beast. Hank McCoy was one of the first X-Men members and made his debut in Uncanny X-Men #1, and served with them until the main X-Men team disappeared. It was also during this time that the Beast turned blue when he unsuccessfully tried to “cure” himself from being a mutant.
It was the blue, furry Beast who joined the Avengers, and he was one of the most upbeat and optimistic members of the team, clearly a change from the persecuted X-Men heroes (and a massive difference from Beast in recent years). This was also where he developed his lifelong friendship with Simon Williams. Other than the Avengers, he has also been part of the Defenders. While very strong, he is even more powerful thanks to his heightened intelligence.
8) Wolverine

Out of all Marvel’s mutants, the one who has been part of the Avengers more than almost any other is Wolverine. That is simply because Marvel knows that Wolverine is one of the company’s most popular characters, so the intent is to get him in as many comics as possible. It also helps that Wolverine is one of the most respected mutants in Marvel, especially to the people who matter, like Captain America.
Not only is Wolverine a powerful mutant on the Avengers team, but he is also one of the most loyal. This was proven in the Marvel Comics crossover storyline Avengers vs. X-Men, where he took the side of the Avengers over his own mutant allies in the X-Men during this war. As for his power levels, he is almost unstoppable thanks to his healing factor.
7) Havok

While Havok might not be as popular, he is just as powerful as his brother Cyclops. Alex Summers is one of three Summers brothers, and just like Scott, he has control over ambient cosmic energy. While Cyclops shoots it through his eyes and has no control over it, Havok has complete control over his powers and can absorb the energy and shoot it in devastating plasma blasts.
As for the Avengers, it was Havok that Captain America chose after Avengers vs. X-Men to create the Uncanny Avengers team, which combined mutants and non-mutants to show society that there was nothing to fear from mutants and they could be as respectable heroes as anyone else. Havok served as that team’s leader.
6) M

While she is sometimes known as Penance, this is Monet St. Croix, who also goes by the name M. She is a powerhouse mutant hero who joined the mutant teams as part of Generation X before also becoming a member of X-Corps, X-Factor Investigations, and the X-Men. Her mutant powers make her a nearly perfect human being based on strength, agility, speed, reflexes, and more.
When the fall of Krakoa happened thanks to the terrorist organization known as Orchis, Monet was one of the mutant survivors, and she set out to get revenge for her fallen comrades. To do this, she joined Captain America’s Avengers Unity Division, which was the new name for the Uncanny Avengers.













