Sebastian Stan (born August 13, 1982) is a Romanian and American actor and producer. He gained recognition for his role as Bucky Barnes / Winter Soldier in the Marvel Cinematic Universe media franchise, beginning with the film Captain America: The First Avenger (2011), and serving as a lead actor in the Disney+ miniseries The Falcon and the Winter Soldier (2021) and the film Thunderbolts* (2025).
On television, Stan played Carter Baizen in Gossip Girl (2007–2010) and the Mad Hatter in Once Upon a Time (2012), and starred in the miniseries Political Animals (2012). In 2022, he received critical acclaim for his portrayal of Tommy Lee in the Hulu miniseries Pam & Tommy, earning nominations for a Primetime Emmy Award and a Golden Globe Award. On Broadway, Stan has appeared in the Eric Bogosian play Talk Radio (2007) and starred in the William Inge play Picnic (2013).
On film, Stan had a supporting role in The Martian (2015) and starred in I, Tonya (2017) and Fresh (2022). For his performance in A Different Man (2024), he won a Silver Bear for Best Leading Performance and a Golden Globe Award for Best Actor. For his portrayal of a young Donald Trump in The Apprentice (2024), Stan earned an Academy Award nomination for Best Actor.
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as Tom
as Victor Frankenstein / The Monster
as Harvey Dent
as Bucky Barnes / Winter Soldier
as Bucky Barnes / Winter Soldier
as Mihai Gheorghiu
as Bucky Barnes
as Bucky Barnes (uncredited)
as Donald Trump
as Edward
as Vlad Tenev
as Sebastian Stan(1 ep)
as God
as Max
as Terry the terrific
as Steve
as Tommy Lee(8 eps)
as Nick Fowler
as James 'Bucky' Barnes / Winter Soldier (archive footage)
as Bucky Barnes (voice)(5 eps)
as Bucky Barnes / The Winter Soldier (voice)(1 ep)
as Bucky Barnes / Winter Soldier (voice)(1 ep)
as Mickey
as Bucky Barnes / Winter Soldier(6 eps)
as Self - Bucky Barnes / The Winter Soldier(1 ep)
as Bucky Barnes / Winter Soldier (archive footage) (uncredited)(10 eps)
as Deputy Lee Bodecker
as Self - Actor, "Avengers: Endgame"
as Frank
as Scott Huffman
as Charles Blackwood
as Bucky Barnes / Winter Soldier
as Priest
as Chris
as Bucky Barnes / Winter Soldier
as James 'Bucky' Barnes / Winter Soldier (uncredited)
as Jeff
as Steve
as Dayton White
as Clay Appuzzo(1 ep)
as Bucky Barnes / Winter Soldier
as Lance Tucker
as Chris Beck
as Self(1 ep)
as James 'Bucky' Barnes / Winter Soldier (uncredited)
as Joshua Brummel
as Chris Beck(6 eps)
as Self(1 ep)
as Self(1 ep)
as Bucky Barnes / Winter Soldier
as Self - Guest(3 eps)
as Self(1 ep)
as Will Franklyn(2 eps)
as Ben Curtis
as T.J. Hammond(6 eps)
as Billy
as Jefferson / Mad Hatter(6 eps)
as James Buchanan 'Bucky' Barnes
as Andrew / Suitor
as Blaine
as Self - Guest(1 ep)
as Jack Benjamin(13 eps)
as Harry
as Walter
as Carter Baizen(11 eps)
as Leo Reilly
as Self(1 ep)
as Martin Waters
as Chase Collins
as Simon
as Johnny Nunzio
as Self - Guest(2 eps)
as Self(1 ep)
as Subway Kid (uncredited)
as Justin Lafferty(1 ep)
as Self(1 ep)
as Self - Nominee(1 ep)