There's a new Doctor Doom on the way in the Marvel Cinematic Universe, but canceled cartoon Avengers: Earth's Mightiest Heroes already nailed the character.

Wondering which universe Doctor Doom comes from in the MCU? The Fantastic Four: First Steps credits scene hints at a powerful connection between Doctor Doom and Earth-828. With Franklin Richards ...

First Steps" brings a new supergroup into the MCU while a post-credits scene gives a taste of an iconic supervillain. Spoilers!