Mystique

Raven Darkholme is a character in the X-Men films.

History
At the age of 8 or 10 she is adopted by a fellow mutant's family.18 years later she joins Charles Xavier's group of mutants.However, Charles' friend, Erik makes his own group of mutants, and she joins.In 2000, she, Magneto, Toad and Sabretooth attack the X-Men.However, in 2006 she is cured by a Worthington Lab cure dart.