Mad Men star January Jones becomes the latest to join Matthew Vaughn's X-Men: First Class, according to Deadline New York.

Jones will be portraying Emma Frost in the film, a role that Rosamund Pike was previously rumored to play. Alice Eve was also offered the role of Emma Frost, although the site reported that no deal could be made, which opened the door for Jones to step into the role.

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The site is also reporting that Zoë Kravitz will play Angel in the film and Bill Milner will play a younger version of Magneto. Michael Fassbender will play the older version of Magneto. We also reported earlier today that Morgan Lily will play a younger version of Mystique, with Jennifer Lawrence playing the older Mystique.

As always, we'll be sure to keep you posted with any and all news revolving around X-Men: First Class as soon as we have more information.