The MCU is one of the biggest superhero franchises in history, and there's no question as to why. With so much source material to pull from and countless interesting characters, it's the saga that keeps on giving. One of fandoms' favorite things to do is come up with fan theories, and when it comes to the MCU, there are certainly a lot of them. From unanswered questions to character quirks, we managed to round up some of the most interesting fan theories surrounding the Winter Soldier himself - Bucky Barnes. Which fan theory do you think is most believable? Vote up your favorites.
The Winter Soldier Helped Train The Red Room QualifiersPhoto: Captain America: Civil War / Walt Disney Studios Motion Pictures
From Redditor u/Skatebass:
Simple really, in Age of Ultron when Black Widow has her vision, it shows someone choking her out before she taps out. I think that out is Bucky Barnes, or more specifically, the Winter Soldier. That's why in Civil War when he is choking her out, she says "don't you recognize me?" because the Winter Soldier used to help train the Red Room qualifiers.Interesting theory?
Bucky Knew Everything About Steve And PeggyPhoto: Captain America: The First Avenger / Paramount Pictures
From Redditor u/ak2sup:
At the end of Endgame, when Cap is preparing to travel into past, Bucky seems as if he knows what is going to happen. Like he knew that Cap is going to the past and live a life with Peggy. And it's further confirmed when Bucky sent Sam to talk to old Steve. I mean, that's strange! Bucky acts like he already knows everything. Okay so here's my theory on how Bucky learnt of 2023 Cap (in 2014) - if you watch all Peggy Carter's scene from The Winter Soldier you will understand. Pay attention to Peggy's lines, those are important. In the end credit scene of The Winter Soldier, Bucky visits a museum to learn more about Steve, what if he visited Peggy Carter's home after museum and found old Steve there? I think it's possible. He met old Steve in 2014 and learned everything, but made a promise that he won't reveal anything to the Cap of main timeline. Of course Steve wouldn't have told Bucky about everything that happens in future, he just have told him that he is from future and living a life he never got. So there has been two Steve Rogers living in main timeline -1st. Prime timeline Steve Rogers and 2nd. 2023 Steve Rogers.Interesting theory?
The Winter Solider Killed Ben ParkerPhoto: Captain America: Civil War / Walt Disney Studios Motion Pictures
From Redditor u/jackmico343:
What if Bucky killed Peter's Uncle Ben and here's why. Bucky is known for having a violent passed, all because of Hydra/ Zemo. Remember in The Amazing Spiderman when a police officer said that the person who killed Peter's uncle had a star on his left arm? Well, Bucky does too. Marvel is known for foreshadowing and easter eggs, and this thing about the star ties in to it. Another reason is Peter's parents, you know how Peter's parents were S.H.I.E.L.D agents and someone killed them? What about if before the whole Bucky thing, Peter's parents had something on Hydra, and when Hydra found out, they killed them. But what they didn't know, is that Uncle Ben knew more too, so this is when they got Bucky to kill Ben Parker for the info.Interesting theory?
Bucky Barnes Is The Original Captain America In Another TimelinePhoto: Captain America: The Winter Soldier / Walt Disney Studios Motion Pictures
From Redditor u/Starkstar502:
Dr. Strange 2 will introduce concept of the Multiverse in the MCU and it'll will feature different versions of MCU characters. The first we could see is Captain America as Bucky Barnes,in the comics after the apparent death of Captain America Steve Rogers Bucky took on the mantle of Captain America and joined the Avengers. People thought we were gonna see him become Captain America in Endgame but the mantle was instead given to Sam Wilson AKA Falcon. But there's still hope that we will see Bucky as Captain America in the MCU because some speculate that when Steve stayed in the past he not only did create a new timeline but a universe all together and in this universe Bucky Barnes is Captain America. It makes sense because Bucky is okay with Sam becoming Captain America because Steve probably told him that in another timeline he gets to be Captain America. With that theory it could most likely be confirmed in the Multiverse of Madness and we could see Dr. Strange visit that universe and meet Bucky Barnes as Captain America.Interesting theory?