One of the Marvel Cinematic Universe’s most enduring characters may be preparing for his curtain call.
Sebastian Stan’s portrayal of James “Bucky” Barnes has spanned over a decade of storytelling, transforming the character from loyal friend to tragic weapon to redeemed hero. First appearing in Captain America: The First Avenger (2011), Bucky’s journey began as Steve Rogers’ (Chris Evans) steadfast companion before his fateful fall into enemy hands changed everything.
HYDRA’s experiments revived him as the Winter Soldier—an elite assassin stripped of autonomy and memory. His dramatic reappearance in Captain America: The Winter Soldier (2014) set the stage for one of Marvel’s most emotional storylines, culminating in his internal battle for freedom and redemption through Captain America: Civil War (2016) and the events that followed.
Freed from HYDRA’s control thanks to the Wakandans, Bucky evolved once again—this time as the “White Wolf.” Fighting beside the Avengers in Avengers: Infinity War (2018) and Avengers: Endgame (2019), he transitioned from a weapon of destruction to a hero seeking atonement.
His personal evolution reached new emotional heights in The Falcon and the Winter Soldier, where he reckoned with guilt, trauma, and his place in a world without Steve Rogers. The series paved the way for Sam Wilson’s (Anthony Mackie) rise as Captain America, with Bucky finally learning to let go of the past. He next appeared in Thunderbolts* (2025).
Sebastian Stan Speaks Out on Stepping Out of Winter Soldier Role
“I have to try to offer something different than before,” Stan said on the Stronger Podcast, via Variety. “And I’ve never favored one role over another.”
The actor reflected on his years in the MCU, acknowledging the experience as a pivotal chapter in his growth. Beyond Marvel, Stan has earned critical attention for portraying a young Donald Trump in The Apprentice (2024) and for his haunting role as Edward in A Different Man (2024).
“The Marvel stuff, I’ll always, till the end of time, [feel it] really helped me grow as a person and helped me grow as an actor, and it taught me relationships and [I worked with] Robert Downey [Jr.] and Scarlett [Johansson] and all these people I looked up to. It was a business,” he explained. “It was a family, and it gave me a sense of belonging, and it’s always there for that, but it was only the first step for me.”
With Avengers: Doomsday (2026) fast approaching, questions about which heroes might not survive have reignited. For Bucky Barnes, a character defined by loss and perseverance, Doomsday could offer a fitting and emotional conclusion.
Marvel Studios’ Avengers: Doomsday is shaping up to be a cinematic event that could redefine the MCU. The film will reunite directing duo Anthony and Joe Russo, who last helmed Infinity War and Endgame, for what promises to be a massive ensemble adventure.
Originally conceived as a continuation of the Multiverse saga, Doomsday is shifting gears to spotlight the emergence of Doctor Doom. In a move no one saw coming, Robert Downey Jr. will return to the Marvel fold, not as Tony Stark, but as Doom himself—a bold creative gamble signaling a new era for the franchise.
As fans speculate on which heroes will rise or fall, Bucky Barnes’ fate looms large. Whether Avengers: Doomsday serves as his farewell or another evolution, it’s clear that Sebastian Stan’s journey with Marvel has left a lasting mark.
How do you feel about Sebastian Stan’s role potentially coming to an end in Avengers: Doomsday? Let us know in the comments down below!
