Scoop: Gossip Girl's Sebastian Stan Cast as James Wolk's Twin in USA's Political Animals

Sebastian Stan Political AnimalsSpotted: Gossip Girl‘s Sebastian Stan putting down stakes in the nation’s capital.

The Captain America actor has joined the rock-solid cast of Political Animals, a six-episode Washington D.C.-based drama about a former first family debuting this summer on USA Network.

From Greg Berlanti (Dirty Sexy Money) and Laurence Mark (Jerry Maguire), the series stars Sigourney Weaver as Elaine Barrish, a divorced former First Lady who immerses herself in her new job as Secretary of State as she rebounds from the dissolution of her marriage and losing the presidential nomination.

Stan, who turns up on Once Upon a Time on March 25, will play her son T.J, a lost soul struggling with addiction — the polar opposite of his “perfect” twin brother, Douglas (Lone Star‘s James Wolk). Brittany Ishibashi (Ghostfacers) plays Doug’s fiancée.

Carla Gugino rounds out the ensemble as a Pulitzer Prize-winning journalist who is hellbent on destroying Elaine’s career.