James Buchanan "Bucky" Barnes is a character appearing in American comic books published by Marvel Comics. Originally introduced as a sidekick to Captain America, the character was created by Joe Simon and Jack Kirby and first appeared in Captain America Comics #1. Barnes' original costume and the Bucky nickname has been used by other heroes in the Marvel Universe over the years.

Sebastian Stan is a Romanian–American actor. 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).