British actress Alice Eve has been cast as a young mutant Emma Frost in director Mathew Vaughn’s (Kick Ass) X-Men: First Class.

Who is Alice Eve? She was the female lead in this year’s rom-com She’s Out of My League … yeah, that’s not gonna help. But, if you caught Sex and the City 2 with your wife, girlfriend, or a very special Thai boy, you may remember Eve as Charlotte’s bra-less, boob-bouncing nanny Erin.

No? Well, what about now:

Alice Eve in 'Crossing Over'

I thought so. Now, about the character.

Emma Frost is a telepathic, shape-shifting mutant that nerd stuff, nerd stuff, and more nerd stuff with other X-Men mutants. Of particular interest to non-virgin moviegoers will be Frost’s affinity for trashy outfits like those worn by Great White groupies.

X-Men: First Class is an origins story following the early relationship between arch enemies Charles Xavier and Magneto, played by James McAvoy (Wanted) and Michael Fassbender (Jonah Hex) respectively. Twentieth Century Fox plans to have the film in theaters on June 3, 2011.

(UPDATE: Looks like Alice Eve won’t be playing Emma Frost. “Mad Men’s” January Jones has reportedly scored the part. Break the disappointing news to your penis lightly.)

(UPDATE 2: Alice Eve scores some ATM action)

James McAvoy is on the list of Clatto’s 12 Heroes in Horror/Sci-fi That Won’t Make You Feel Like an Asshole.