Mystique

Throughout most of her history, Mystique has been a supervillain, founding her own Brotherhood of Mutants and assassinating several important people involved in mutant affairs. Mystique herself is a mutant, a shapeshifter whose natural appearance includes blue skin and yellow eyes. At one point, she mentions that she is over 100 years old. Mystique is the mother of the villain Graydon Creed, the X-Men hero Nightcrawler, and adoptive mother of the heroine Rogue.[4] She is forced to abandon Nightcrawler, but raises Rogue for a number of years, and the two women have mixed feelings towards one another.