Sebastian Stan is an American actor. He has starred in MARVEL and various films. I will introduce you to who he is.
He made his debut in 1994 in the movie "71 Fragments". In 2007, he was cast in the hit drama "Gossip Girl" and in 2011.And in the drama "Once Upon a Time," he appears as Jefferson, the mad hatter.
he made him first Marvel film appearance as Bucky Barnes in "Captain America: The First Avenger" He also appeared in the sequels "Captain America: The Winter Soldier" and "Civil War: Captain America" as well as "Avengers: Endgame" and became a very popular actor.
Bucky Barnes, Captain America's best friend, was presumed dead during World War II, but was brainwashed by an evil organization and resurrected as an assassin. He fights using his arm strength and guns with metal metal arms, and he also performs many action scenes.