Warning: This post contains potential spoilers for Avengers: Doomsday.
The post-credits scene of The Fantastic Four: First Steps shows Robert Downey Jr.’s Victor von Doom / Doctor Doom interacting with Franklin Richards. This confirms that earlier rumors about Doom kidnapping Franklin and taking him to the X-Men universe were false.
It is confirmed that Downey Jr.’s Victor von Doom appears in the First Steps post-credits scene to ask the Fantastic Four for help regarding the multiverse incursions. Also, the post-credits scene of Thunderbolts* reportedly shows Doctor Doom aboard the extra-dimensional ship alongside the Fantastic Four, revealing that his world has been destroyed.
According to MyTimeToShineHello, in Avengers: Doomsday, Victor von Doom asks the Fantastic Four for help with the incursions.
They travel together to the MCU in their ship to warn everyone, then join forces to head to the X-Men universe, the source of the next incursion. They must stop it before that universe destroys their own.
It’s as if Doctor Doom plays the role of a wolf in sheep’s clothing. He appears to have seemingly noble intentions, but beneath the surface he has ulterior motives and is pragmatic and calculating. He manipulates those around him, including MCU heroes and the Fantastic Four.
In Avengers: Doomsday, Doctor Doom’s character will be similar to Thanos in Infinity War, believing himself to be the hero. He will view the multiversal incursion as a serious threat and will use any force necessary to stop it and ultimately take control. The concept of Doom being an antihero in the sense that his true goal is to stop incursions and “save” the multiverse by fusing the timelines into a single universe has so much potential.
Doom is using Tony Stark’s image to manipulate everyone. He knows the heroes will trust him if he looks like Iron Man.
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.
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