Winter Soldier

The Winter Soldier is a Marvel Supervillain and an enemy the Marvel superhero Captain America. He was originally known as Bucky who was both a close friend and sidekick to Captain America during World War 2.

As Bucky
As James Barnes, aka Bucky, he lost his father, during WWII, and was adopted by Camp Lehigh. It was there that he learned the identity of Captain America. He was trained by Captain America and was assigned to be Cap's sidekick. There he accompanyed him on many adventures, and the duo usually worked with the original Invaders. However, on thier final mission together against Baron Zemo, both Bucky and Cap hopped on an experimental drone plane in an attempt to disarm a bomb. When the bomb detonated, It forced Cap to fall in the North Atlantic, where he would later be found frozen in time and thawed out by the Avengers. The American forces never did find Bucky's body, and he was presumed dead. Not knowing that Bucky was both found and revived by Russian General; Vasily Karpov.

As Winter Soldier
When Bucky awoke, he had no memory of his real identity, which gave Karpov an opportunity to reprogram Bucky as a Soviet assassin and was giving the alias known as the Winter Soldier. He was sent all across the globe, committing political assassinations with huge effects on the Cold War. However, his memory implantation caused mental instability, and he was kept in stasis between missions to prevent rebellion.

Captain America: The First Avengers
Much like the Comic, Bucky was Captain America's Sidekick. However during one the their missions, they were assign to capture Arnim Zola. During an attack with HYDRA Member, one of the members attempted to shoot Bucky. However the shot blew up hole in the train. Bucky ended up falling into the icy cold water below, and was declared legally dead.

Captain America 2: The Winter Soldier
It's been hinted that the Winter Soldier is going to be the main antagonist in the upcoming 2014 movie; Captain America 2: The Winter Soldier. It's also been rumors that Sebastian Stan will reprice his role as James Buchanan "Bucky" Barnes, AKA, The Winter Soldier.

Powers & Skills
Because he was originally trained by Captain America, The Winter Solider is skilled on nearly all forms of hand-to-hand combat. He skilled on all kinds of firearms and bombs. He's a skilled knife thrower, and an expert marksman. His entire left arm has been mechanically modified, making it cybernetic. This has granted the Winter Soldier both superhuman strength and agility.