Marvel fans are spiraling after the latest 'Avengers: Doomsday' teasers, especially with all the rumors about a possible traitor in the team. The wildest theory? Robert Downey Jr. as Doctor Doom could be the one to betray everyone! Some say this twist could even top the shock of 'Infinity War.' The fandom is split—who do you think is the real villain? #Entertainment #Movies #AvengersDoomsday