8 Greatest Marvel Villains Who Became Heroes

Across Marvel Comics’ long history, there are quite a few heroes and antiheroes who were initially introduced on the opposing side of the fight. Whether they were simply misled or willingly crossed lines to achieve their goals, these characters were once antagonistic forces that the heroes had to overcome. While they eventually fight alongside the heroes or even become some of the best-known characters in Marvel, the start of their journeys is often far from what casual or new readers might expect.