Sebastian Stan

Sebastian Stan (born August 13, 1983) is a Romanian-born, American-raised actor. He played Jefferson the Mad Hatter on the ABC's fantasy drama Once Upon a Time, Prince Jack Benjamin on Kings and Carter Baizen on Gossip Girl. He appeared in the films Captain America: The First Avenger and Black Swan. In 2012, he appeared in the USA Network miniseries Political Animals starring alongside Sigourney Weaver.

His role in Political Animals earned him a Critics' Choice Television Award for Best Performance by a Supporting Actor in a Miniseries.