Winter Soldier (MCU)

"Who the hell is Bucky?"

- Winter Soldier "Most of the intelligence community doesn't believe he exists. The ones that do call him the Winter Soldier. He's a ghost, you'll never find him..."

- Black Widow

The Winter Soldier is an alias of the HYDRA assassin known as '''Bucky Barnes. '''Born in the Great Depression, Bucky grew up as best friend of the wimpy Steve Rogers, standing beside him through all trouble the duo went through. By the dawn of World War II, Bucky had enlisted into service despite Steve's inability to join. While Steve Rogers would eventually become the first "Super Soldier" as Captain America (MCU), Bucky would be busy fighting on the Western Front before being captured by HYDRA and being experimented on by Armin Zola. Captain America eventually destroyed the HYDRA camp where he was imprisoned, and the duo soon founded the Howling Commandos, a daring spec ops team determined to stop HYDRA. While on mission, however, Bucky was thrown off the train seemingly to his death.

This was not the case, however. Bucky would survive the fall, and be captured into Soviet custody to be further experimented on by "reformed" HYDRA scientist Armin Zola. Continously brainwashed and preserved through cryogenics, Bucky soon forgot his past life and became The Winter Soldier, HYDRA's most lethal and dedicated assassin. Taking over two dozen lives over the course of fifty years, Bucky was finally freed from his brainwashing after confronting and nearly killing Captain America, his former best friend. Finally free, Bucky set out across the country to discover his past and, more importantly, think about his future.