(Warning: This post contains spoilers for Avengers: Doomsday.)
Robert Downey Jr.’s Doctor Doom is using powerful magic, as hinted in the plot details of Avengers: Doomsday.
Doom is from the Fantastic Four universe (Earth-828). A rumor suggests that Sue Storm and Reed Richards already know Doctor Doom. When he appears at the Baxter Building to see Franklin, Sue is not surprised to see him, as they are friends.

According to scooper @MyTimeToShineH, Vanessa Kirby’s Sue Storm believes that witches are the reason Doctor Doom behaves the way he does in Avengers: Doomsday. She believes they are manipulating him into doing terrible things.
It was previously reported that Doctor Doom will have the ability to control machines and robots through magic runes. He will take command of Sentinels from the X-Men universe and use them against the heroes.
So, there is a chance that Avengers: Secret Wars may take elements from the Children’s Crusade comics but adapt them for Secret Wars. Doctor Doom reportedly rules Battleworld from a massive fortress and keeps Scarlet Witch imprisoned because her chaos magic helps hold the multiverse together.
We previously reported that Avengers: Doomsday features Downey Jr.’s Doctor Doom’s past and what happened to his family. Victor von Doom’s wife, Valeria, and his son were killed in an accident, and Victor himself was severely injured, leaving his body badly damaged.
Directed by the Russo brothers from a screenplay by their longtime collaborator Stephen McFeely and Michael Waldron.
Here’s the plot synopsis for Avengers: Doomsday:
“Doctor Doom has officially arrived on the Marvel Cinematic Universe stage. This villain, a master of cutting-edge science and powerful magic, will unleash a cascading crisis across the multiverse. Marvel’s most iconic actor, Robert Downey Jr., also returns as Doctor Doom!”
Announced Cast for Avengers: Doomsday
- Robert Downey Jr. as Doctor Doom
- Chris Evans as Steve Rogers
- Paul Rudd as Ant-Man
- Simu Liu as Shang-Chi
- Tom Hiddleston as Loki
- Florence Pugh as Yelena Belova
- Danny Ramirez as Falcon
- Sebastian Stan as Bucky Barnes
- Winston Duke as M’Baku
- Chris Hemsworth as Thor
- Letitia Wright as Black Panther
- Tenoch Huerta Mejía as Namor
- Anthony Mackie as Captain America
- David Harbour as Red Guardian
- Wyatt Russell as U.S. Agent
- Hannah John-Kamen as Ghost
- Lewis Pullman as Sentry
X-Men cast:
- Ian McKellen as Magneto
- Patrick Stewart as Professor X
- Rebecca Romijn as Mystique
- James Marsden as Cyclops
- Kelsey Grammer as Beast
- Alan Cumming as Nightcrawler
- Channing Tatum as Gambit
Fantastic Four cast:
- Pedro Pascal as Reed Richards (Mr. Fantastic)
- Vanessa Kirby as Sue Storm (Invisible Woman)
- Joseph Quinn as Johnny Storm (Human Torch)
- Ebon Moss-Bachrach as Ben Grimm (The Thing)
Produced by Kevin Feige, Louis D’Esposito, and Russo Brothers will produce through their AGBO banner.
Avengers: Doomsday will be released in theaters and IMAX across the United States on December 18, 2026, and Avengers: Secret Wars is scheduled for release on December 17, 2027.








