10 Best Times Supervillains Switched Sides

7. Rogue - Uncanny X-Men

A longtime member of the Avengers and the X-Men, Rogue - daughter of Mystique and the captor of Carol Danvers' powers of flight and super-strength - is perhaps one of the most popular members of Marvel's mutants. However, she wasn't always on the side of good, and even made her debut as a villain against the Avengers in 1981.

Given that her mother is Mystique, the fact Rogue started out as a villain should probably be more obvious. She works alongside Mystique's Brotherhood of Evil Mutants and when the rest of the group are captured, her mother decides that she should steal Ms. Marvel's powers to break them out. Carol's Kree genetics complicate the process however, and Rogue is left permanently changed by the encounter, adopting elements of Danvers' personality and her powers too.

This encounter isn't enough to convince Rogue to switch allegiances, however. She continues fighting alongside Mystique until she encounters Rom, whose nobility convinces Rogue to change her ways.

The rest is history: Rogue joins the X-Men, becomes a pivotal member, and rises so high that she then becomes a member of the Avengers too, making this turn absolutely one of Marvel's best.