<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> 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>
who plays bucky in captain america civil war
who plays bucky in captain america civil war
Sebastian Stan
Sebastian Stan