Robert Downey Jr's Doctor Doom Isn't A Tony Stark Variant, And That's The Point

Published Sep 19, 2026, 8:00 AM EDT

Sky Blanton is a Movie Contributor at ScreenRant with professional experience covering movies, television, and pop culture. Her published work spans news, interviews, features, and opinion pieces, with a focus on film, franchise storytelling, and the entertainment industry.

She earned her bachelor's degree in Communications with a concentration in Professional Writing and a minor in Business Writing from Southern New Hampshire University.

Robert Downey Jr. returning to Marvel as Doctor Doom is supposed to make fans think of Tony Stark. That may also be the biggest reason Doom should not be a Tony Stark variant.

The temptation is obvious. Downey spent more than a decade playing Tony, and Doctor Doom has enough similarities to Iron Man that a multiverse explanation could fit surprisingly well. If Victor von Doom really is another version of the man who became Tony Stark, Avengers: Doomsday would have an easy way to turn Downey's casting into a major story reveal.

But that would make Doom less interesting and risk taking something away from Tony's ending. Avengers: Endgame gave Tony a definitive final choice, and Marvel does not need to undo the emotional weight of that moment just because the multiverse makes it possible. Doom can still feel connected to Tony without secretly being him.

The Argument For Doctor Doom Being A Tony Stark Variant in Avengers: Doomsday

The Tony Stark/Doctor Doom theory is more specific than just suggesting that Doom is an evil version of Iron Man. One popular version proposes that Victor von Doom was actually the person Tony Stark could have been in another universe, with the biggest difference being who raised him. After Victor's parents die, Howard and Maria Stark allegedly take him in and raise him as their son, giving him the name Tony Stark. In another reality, Victor grows up as himself and eventually becomes Doctor Doom.

That could explain several similarities between the Iron Man and Doctor Doom characters. Their intelligence would be the most obvious connection, with both men becoming extraordinary scientists because they possess the same natural ability. Their arrogance could also carry across universes, but Tony's experiences eventually force him to recognize his own limitations while Doom's confidence grows into absolute certainty that he alone can fix the world.

Their armor has another interesting parallel. Tony turns his engineering skills into the Iron Man suit, initially to survive before using it to protect other people. Doom also creates technologically advanced armor, but uses his intellect and resources to establish power rather than becoming a superhero.

Then there is their trauma. Tony loses people he loves but eventually chooses to sacrifice himself, so others can live. The Doomsday footage suggests Victor takes the opposite path. Sue Storm remembers him as kind and caring before the loss of his family left him broken, while Doom accuses the heroes of having "lived stolen lives."

Robert Downey Jr. has essentially described the same contrast, saying Tony's trauma made him a hero while Doom's had the opposite effect. If Marvel wanted Doom to be a Tony variant, the pieces are already there (via Entertainment Weekly).

The problem is that they also make a strong case for keeping the characters separate.

Why That Would Ruin Avengers: Endgame

Tony's death only works because there is no version of the character left to save him. He spends years running from the consequences of his choices, then finally makes the choice he never could have made at the beginning of his story. Tony gives his life because someone has to, and he knows exactly what that sacrifice will cost him.

Making Doctor Doom a Tony variant would not technically undo that death. Tony Stark could still be dead in the main MCU. But it would put his face, personality and history right back at the center of the story. The multiverse would become a way to keep bringing Tony back without actually bringing Tony back.

That also makes Doom less interesting. Victor should have his own reasons for becoming Doctor Doom, especially after Doomsday establishes that he was once a kind person before losing everything he cared about. His tragedy does not need to belong to Tony for it to hit hard.

Downey can still use everything audiences associate with Tony. The confidence, the intelligence and even the familiarity of his face can make Doom unsettling without turning him into a Stark variant. There is something much darker about watching the man who played Tony Stark become someone who looks like him but made every important choice differently.

Tony's story ended with sacrifice. Doctor Doom's should start with his own story.

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  Victor von Doom

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  Reed Richards / Mr. Fantastic

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  Thor

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  Vanessa Kirby

  Sue Storm / Invisible Woman