As Marvel Studios prepares for Avengers: Doomsday, the closing credits of the Marvel Television Original Series VisionQuest reveal a mysterious hooded figure unearthing Wanda Maximoff from the rubble of Mount Wundagore.
The studio has speedrun its villain introductions since Robert Downey Jr. was cast in 2024 following Jonathan Majors’ departure as Kang, according to GamesRadar+. Doctor Doom has now secured three post-credits appearances in just over a year. That matches the pre-release setup given to Thanos before 2018’s Avengers: Infinity War.
Doom’s first silent appearance occurred at the end of Fantastic Four: The First Steps in July 2025, where he speaks with a young Franklin Richards before Sue Storm interrupts, GamesRadar+ reported. His second appearance took place in Avengers: Endgame Encore, which showed him taking Bruce Banner from a prison following Spider-Man: Brand New Day. The third appearance arrived in VisionQuest, where he pulls the Scarlet Witch from the debris.
Defending Against Variant Theories
The surprise casting of Downey Jr. triggered widespread speculation that Doctor Doom might simply be a multiversal variant of Tony Stark. Marvel Studios Kevin Feige dismissed that theory during an interview with Empire.
“The answer is no. He’s Victor Von Doom,” Feige told Polygon.com. He pointed to Chris Evans portraying both Steve Rogers and Johnny Storm as precedent for actors playing distinct characters in the cinematic universe.
Red Guardian actor David Harbour hinted in August that Doom’s face would resemble Stark, though he later walked back those comments, Polygon.com reported. Meanwhile, comic book fans have pointed to Jonathan Hickman’s 2015 Secret Wars series as proof that Doom might use god-like alter egos such as Rabum Alal to control a following of religious fanatics.
Building a Terrifying Presence
Directors Anthony Russo and Joe Russo describe the new antagonist as far more ego-driven than Thanos, whose motivations centered on a perceived greater good. They emphasize that this version of Doom carries deep emotional scars into the conflict.
“He’s a father who’s a victim of trauma. He has lost a child,” Joe Russo told Empire. “When people see the film they say it’s a very scary movie. It’s scary because he’s so profoundly damaged.”
Joe Russo added that the character relies on dark magic to achieve his goals. “He says, ‘Hell answers to me,’ and he’s not kidding. He’s a very powerful character with some very dark magic, and he’s not above selling his soul to get what he wants. He’s worth being scared of,” he told Empire.
Downey Jr. shared his own perspective on stepping into the antagonist role after years of playing Iron Man. “I like a bit of scorched earth,” he told Empire. “Whatever you think he may be entertaining, I would ten times it, and you’ll probably be closer to the ballpark.”
Release Dates and Director Details for Avengers: Doomsday
When does Avengers: Doomsday release in theaters?
The film hits UK cinemas on December 16, 2026, and US theaters on December 18, 2026, with a runtime of 165 minutes, according to cbr.com and GamesRadar+.
Who is directing Avengers: Doomsday?
Anthony Russo and Joe Russo are directing the feature, which reunites a large roster of Marvel cinematic heroes and villains, cbr.com reported.
Is Doctor Doom a variant of Tony Stark?
Marvel Studios Kevin Feige confirmed to Polygon.com that the character is Victor Von Doom and not a variant of Tony Stark.
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