Emma Frost

Played by January Jones

Emma Frost is a powerful telepathic mutant who can also transform her body into an near-indestructible diamond form, and served as a lieutenant within Sebastian Shaw's Hellfire Club. Freed from Shaw's control after his death, she went on to become one of the founding members of the first class of X-Men trained by Charles Xavier and Erik Lehnsherr. Read more →

First turns up in X-Men: First Class.