First Steps, I am convinced that Doctor Doom will be Avengers: Doomsday 's main character. The ending of The Fantastic Four: First Steps did not do much to actively set up Avengers: Doomsday, with the team remaining in their contained universe after defeating Galactus.

Robert Downey Jr will be introduced as Doctor Doom in Avengers: Doomsday – but what if he’s not the real Doom?

Robert Downey Jr's Doctor Doom has finally stepped into the Marvel Cinematic Universe. In one of the most crucial credit scenes for 'The Fantastic Four: First Steps,' viewers were introduced to the masked metal villain,