Emma Frost (Yost series)

Emma Frost is a mutant that with the ability to shift into an indestructible living diamond form. She also possesses strong telepathy.

Wolverine and the X-Men: Foresight
She seems to show romantic interest towards Cyclops but nothing ever comes from it. It is eventually found out that she is secretly working for the Inner Circle and was responsible for releasing the Phoenix Force and destroying the mansion. She kidnaps Jean when they find her and helps move the Phoenix into the Stepford Cuckoos. When the Cuckoos go on a rampage she realized that they were going to enact the Days of Future Past future that Charles warned the X-Men about. She absorbed the Phoenix into her body seeming to sacrifice herself.

Appearances/Actresses

 * Animated Canon (1 film)
 * Wolverine and the X-Men: Foresight - Kari Wahlgren

Trivia

 * Had Season 2 been put into production, it would have been revealed that Emma survived and would return to the X-Men.