James Buchanan "Bucky" Barnes is a fictional character portrayed by Sebastian Stan in the Marvel Cinematic Universe (MCU) media franchise —based on the Marvel Comics character of the same name. Barnes is childhood best friends with Steve Rogers and serves alongside him in the Howling Commandos during World War II.

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 including the Disney+ miniseries The Falcon and the Winter Soldier (2021).

He also landed the role of Bucky Barnes in Captain America: The First Avenger (2011). In 2012, Stan worked in several projects: Gone (2012), Political Animals (2012), The Apparition (2012), Once Upon a Time (2011), and the mini series Labyrinth (2012).

May 18, 2024 · From Thunderbolts* set photos released by Just Jared, fans got their first behind-the-scenes look at Sebastian Stan as Bucky Barnes. The image shows Stan with long hair and stubble, notably in a professional gray suit and brown dress shoes.

Oct 9, 2024 · After information surfaced regarding Sebastian Stan’s omission from the upcoming Marvel Cinematic Universe movie Captain America: Brave New World (2025), a new report has come to light...

Sebastian Stan portrayed Bucky Barnes/Winter Soldier/White Wolf in Captain America: The First Avenger, Captain America: The Winter Soldier, Ant-Man, Captain America: Civil War, Black Panther, Avengers: Infinity War, Avengers: Endgame, The Falcon and The Winter Soldier, Thunderbolts*, Avengers...

Jan 22, 2024 · In an interview with Variety, the Captain America: The Winter Soldier star shared his excitement to return to the Marvel Cinematic Universe, where he’ll once again be playing the Winter...

Feb 14, 2023 · Marvel Studios confirmed that Sebastian Stan's Bucky Barnes will be filling a new role in an upcoming MCU film, and it's one that may take fans by surprise. While Sam Wilson's Falcon became the new Captain America at the end of The Falcon and the Winter Soldier on Disney+, Bucky's future was left unknown.

Sep 19, 2024 · After The Falcon and the Winter Soldier, Bucky will return to the MCU next as a key member of Thunderbolts*'s star-studded cast. Speaking with Variety, Sebastian Stan explained how Bucky Barnes fits as part of the Thunderbolts team.

Bucky Barnes : [smiling] A semi-stable hundred year old man. Steve Rogers : [smiles, embraces Bucky] How you been, Buck?