<Tr> <Th> Years active </Th> <Td> 2003--present </Td> </Tr> <Tr> <Th> Home town </Th> <Td> Rockland County, New York, U.S. </Td> </Tr> <P> Sebastian Stan (born August 13, 1982) is a Romanian - American actor, known for his role as Bucky Barnes / Winter Soldier in the Marvel Cinematic Universe . On television, Stan portrayed Carter Baizen in Gossip Girl, Prince Jack Benjamin in Kings, Jefferson in Once Upon a Time, and T.J. Hammond in Political Animals . His role in Political Animals earned him a nomination for the Critics' Choice Television Award for Best Supporting Actor in a Movie / Miniseries . In 2015, he co-starred in Jonathan Demme's Ricki and the Flash, Ridley Scott's The Martian, and Bryan Buckley's The Bronze . </P> <P> Stan was born in Constanța, Romania . He has stated that his parents divorced when he was two years old . At the age of eight, Stan and his mother, Georgeta Orlovschi, moved to Vienna, Austria following the Romanian Revolution, where Georgeta was employed as a pianist . Four years later, they moved to Rockland County, New York, after his mother married Anthony Fruhauf, the headmaster of Rockland Country Day School, where Stan was educated . </P>

Who played mad hatter in once upon a time