Bucky Barnes

Bucky Barnes is a super-solider in the Marvel Cinematic Universe, originally introduced as Captain America's best friend and ally. Known for his cold demeanor, brave actions, and mysterious aura, Bucky's life was irrevocably changed after a fall from an experimental train during World War II and subsequent brainwashing and transformation into the Winter Soldier. His distinctive feature is a metal arm, a result of his time as a captive and assassin. Bucky Barnes demonstrates resilience and a strong sense of duty, which often conflict with his personal struggles to overcome his past and the trauma he has inflicted on others. He shares a complex history and bond with Natasha Romanoff, often oscillating between trust and mistrust due to their respective loyalties and the Winter Soldier's activities.