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

First Steps is finally in theaters, bringing the First Family to the Marvel Cinematic Universe. Now, all roads lead to Avengers: Doomsday, the next big crossover event in Marvel’s uneven but never-ending comic book movie saga.

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

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,

So does RDJ’s Doctor Doom pop up in the new Fantastic Four movie? Well, sort of.

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’ powers drawing attention and Latveria’s presence confirmed,

Sometimes, the most effective teases are the ones that don't show you what you're looking for, but rather, highlight its very absence.

The Russo Brothers have warned fans to wait through the credits when they watch The Fantastic Four: First Steps for an Avengers: Doomsday tease, while Robert Downey Jr. is teasing his Doctor Doom research.

When Entertainment Weekly asked Fantastic Four: First Steps director Matt Shakman if Downey Jr. filmed that post-credits scene, the filmmaker pleaded the fifth. "For others to talk about," he teased. However, Shakman did reveal that it was the Russo brothers who helmed the post-credits scene since it was shot for Avengers: Doomsday.

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