Sabretooth

Sabretooth is, of course, classically known as a villain, but he has also been a hero and a member of versions of both the X-Men and the Avengers. A human mutant with relatively unknown origins, but whose real name is Victor Creed, Sabretooth first appeared in Iron Fist #14 in August of 1977.

His mutant powers include a regenerative healing factor, retractable claws and incredibly sharp teeth, superhuman strength, senses and reflexes, feline-like attributes and extended longevity.

After a long stint of villainy, Sabretooth first joined the X-Men in X-Men, vol. 2 #192 in 2006. He’s also been a member of related teams like Team X. Then, in Uncanny Avengers #1 in January of 2015, he joined the Avengers Unity Division. He has also been associated with the likes of the Astonishing Avengers.