First Steps brings Franklin Richards into the MCU, a character who has shaped Marvel's past and may shape the future of the cinematic universe.

Franklin’s powers allowed him to create the universe, dimensions, avoid mind control, and every other cool power you can think of. Franklin Richards is considered a Beyond Omega Level mutant, and he is the only one in that category, making him the most powerful mutant on Earth.

First Steps will introduce one of the comic's mightiest characters, who Kevin Feige says has a bright MCU future.

Marvel Studios’ Fantastic Four: First Steps ends with two post-credit scenes that expand the film’s scope and hint at major players in the Marvel Cinematic Universe’s future. Both scenes center around Franklin Richards, the young son of Reed Richards and Sue Storm, who is portrayed as more than just a background character.

First Steps introduces Franklin Richards, Sue and Reed's son, hinting at his immense potential. , Hollywood, Times Now

Doomsday connects to The Fantastic Four: First Steps? A key mid-credits scene introduces a mysterious presence, hints at a growing multiversal threat, and sets up one character’s deeper interest in Franklin Richards.

Marvel’s Fantastic Four introduces a new character with implications for future events in the cinematic universe.

New Fantastic Four theory suggests Kang the Conqueror and Doctor Doom fear Reed Richards, with the latter villain possibly plotting against Franklin Richards.