10 MCU Characters Who Changed The Most From Phase 1 To Phase 5

Bucky Barnes: War Hero to Winter Soldier

Bucky Barnes evolved from a war hero to the Winter Soldier, undergoing a dramatic transformation that saw him become a ruthless assassin with enhanced abilities. His arc is marked by internal conflict as he grapples with his tortured past and HYDRA's control. Ultimately, he strives to reclaim his identity and join the Avengers.

Bucky Barnes with Captain America's shield in 2014's The Winter Soldier

Introduced as Steve Rogers' best friend and a World War II hero in Captain America: The First Avenger, Bucky's fate takes a dark turn during a mission with Captain America. He is brainwashed by HYDRA and transformed into the Winter Soldier, a formidable adversary.

Bucky Barnes being brainwashed in Captain America The Winter Soldier

In The Falcon and the Winter Soldier, Bucky's subsequent struggle for redemption became a central theme as he faces the consequences of his past actions and seeks to make amends.

Sam Wilson and Bucky Barnes speaking to each other in The Falcon and the Winter Soldier

Red Skull: From Adversary to Stonekeeper

Red Skull, Captain America's primary adversary, underwent a dramatic transformation as he became the guardian of the Soul Stone. After being transported to Vormir, he was cursed to serve as the Stonekeeper, detached from his Nazi origins and imprisoned in a cosmic purgatory.

Red Skull having a drink in Captain America The First Avenger

His role as the guardian adds an unexpected layer to the character, witnessing both Gamora's and Black Widow's deaths, providing a unique perspective on the Infinity Stones and the sacrifices made to obtain them.

Iron Man: Egotistical Playboy to Selfless Hero

Iron Man, portrayed by Robert Downey Jr., began as a brilliant but self-centered industrialist who underwent a profound change. Witnessing the destructive potential of his own weapons, Stark embraced his role as Iron Man, becoming a selfless hero dedicated to protecting the world.

Iron Man (Robert Downey Jr) using the nano-gauntlet in Avengers Endgame

Throughout his journey, Stark grappled with personal demons, confronted his morality, and ultimately made the ultimate sacrifice to save the universe in Avengers: Endgame, emphasizing growth from a selfish genius to a selfless savior.

Robert Downey Jr. as Tony Stark during weapons demo in Iron Man (2008)