The Fantastic Four First Steps’ ending and post-credits scenes explained. Doctor Doom's MCU debut teased as Robert Downey Jr sets up Avengers Doomsday. Franklin Richards' powers revealed.

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

Credit: Marvel Studios In their MCU debut, the Fantastic Four become a Fantastic Five with the arrival of Reed and Sue's son, Franklin Richards. Worries that he might not be "normal" are confirmed in Fantastic Four: First Steps when Galactus recognises that the boy can wield an unlimited energy known as the Power Cosmic (presumably because of the "cosmically compromised DNA" shared by both of his parents).

First Step’s post-credit scene leaves fans buzzing with new Doctor Doom theories, hinting at what could be next for Marvel’s iconic villain

Fantastic Four spoilers are already everywhere on social media, but you may have been fooled by an AI-generated post-credits scene.

Chris Evans, Jessica Alba, Kerry Washington and more starred in the 2005 adaptation of the Marvel comics. Catch up with the actors of 'Fantastic Four' here ahead of 2025's 'The Fantastic Four: First S

Kevin Feige's plan to replace Kang the Conqueror with Doctor Doom in the MCU was in the planning stages for a lot longer than anyone knew.

Marvel Comics achieved tremendous success when Stan Lee and Jack Kirby introduced the Fantastic Four in 1961. Now, almost 64 years later, the MCU is looking to four intrepid heroes to do so once again, ushering in a new era of excitement. Will history repeat itself?