Bucky Barnes

Much like his previous incarnations, Sergeant James Buchanan "Bucky" Barnes is an Earth-091991 counterpart of Carlos Cordell, though also the last Doppelgänger of the late Cordell. He was a former soldier of the 107th Infantry Regiment and the best friend of Steve Rogers, Ayden Jaubert, and Leonard Dorian since his childhood. Barnes was conscripted and assigned to the 107th in 1942. His regiment was captured by the forces of HYDRA, but Barnes along with what remained of his regiment were rescued by Rogers, who had become Captain America during Barnes' military absence. Joining forces in the continuing war, Barnes and Rogers formed the Howling Commandos to battle the Red Skull's forces. During an attempt to capture HYDRA scientist Arnim Zola, Barnes was caught in an ambush and plummeted hundreds of feet from the HYDRA train. As nobody was ever recovered, he was then presumed dead, but officially listed as MIA.

Unbeknownst to his team, Barnes had actually survived the attack on Zola's train, albeit with the loss of his left arm. Brainwashed and armed with a new cybernetic limb, Barnes ultimately became an enhanced HYDRA operative known as the Winter Soldier. Over the next several decades, he would eliminate anyone who posed a threat to HYDRA, including his former ally Howard Stark and Howard's wife, Maria. Between his missions, Barnes would be put into a cryogenic stasis to ensure his longevity.