This article contains spoilers for “Fantastic Four: First Steps,” now playing in theaters. “Fantastic Four: First Steps” marks the official entry of Marvel’s First Family in the MCU, and there are plenty of references and Easter eggs from the comic books in the new movie.

First Steps offers interesting insights into the ultimate villain who is set to appear in the MCU in Avengers: Doomsday.

Yes, that mysterious cloaked figure in Fantastic Four is indeed played by Robert Downey Jr. – as confirmed by the director himself.

Doomsday's Doctor Doom hails from Earth-828, the reality inhabited by Marvel's First Family in The Fantastic Four: First Steps. Read on for

So yes, Doctor Doom does appear in First Steps. In the mid-credits scene, we jump four years into the future and see Sue Storm and her son Franklin reading together in their home in the Baxter Building.

After a number of false starts, the Fantastic Four have another feature adaptation in the retro-pastiche Fantastic Four: First Steps. This isn’t the first time Mr. Fantastic and co. have appeared onscreen; They were last seen in Josh Trank’s Fantastic 4 (stylized as Fant4stic) and Tim Story’s Fantastic Four films for Fox.

In addition to setting up Galactus and the Silver Surfer, Fantastic Four: First Steps finds time to tease another major villain.

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