Without the capacity to control her mutant ability to absorb memories and powers, the young woman known as Rogue was once on a dark path. However, Rogue has successfully redeemed herself as a heroine and become a leader among the X-Men and the Avengers.
Anna Marie, the girl who would become Rogue, ran away from home at an early age after bristling under the controlling nature of her aunt Carrie. Mystique encountered Anna Marie after she had embraced her "Rogue" nickname, and essentially adopted her alongside Destiny, Mystique's pre-cognitive mutant lover. Before long, Rogue's mutant powers manifested for the first time when she kissed a boy named Cody and left him comatose. Eventually, Rogue realized she could never have a normal life and accepted her role in Mystique's Brotherhood of Evil Mutants. Rogue fought with Ms. Marvel during one of her early Brotherhood missions, and without intending to, she permanently absorbed her foe's memories and powers.
Shortly thereafter, Rogue and the Brotherhood attacked the Avengers and nearly defeated them. Rogue went on to menace heroes such as Dazzler, the X-Men, and one of the Spaceknights, as Carol Danvers' ongoing presence in her mind quickly eroded her sanity. With no one else to turn to who could help her, Rogue approached the X-Men and their mentor, Professor Charles Xavier. Over the objections of his other students (and a very violent objection from Danvers herself), Xavier allowed Rogue to join the team.
Despite their early misgivings, the X-Men came to accept Rogue after she put herself on the line to save Wolverine's fiancée, Mariko Yashida, and Colossus. Over time, Rogue became one of the most trusted X-Men, and has gone on to both join and lead the Avengers Unity Squad.