In Marvel Comics, Doom’s fixation on Franklin is legendary. He views the boy’s near-limitless powers as the key to creating and ruling Battleworld, a twisted reality of his own making as seen in Secret Wars.

How Franklin Richards, the power cosmic and Doctor Doom's appearance in "The Fantastic Four: First Steps" credit scene affects "Avengers: Doomsday."

First Steps introduced the character of Franklin Richards in the MCU, theories of him possibly becoming evil in 2026’s Avengers: Doomsday have started surfacing on the internet. An immensely powerful being,