The Russo brothers reveal that Robert Downey Jr. was completely absorbed in his role as Doctor Doom in Avengers: Doomsday , meticulously crafting the backstory of this iconic Marvel villain.

What started as a rumor within fan circles has been confirmed with a revelation that has shaken the Marvel Cinematic Universe. The Russo brothers, directors of some of the most acclaimed MCU installments, have confirmed that Robert Downey Jr., known worldwide for his role as Tony Stark/Iron Man, is returning to Marvel, but this time in a completely unexpected transformation: playing Victor Von Doom, also known as Doctor Doom, in the highly anticipated film Avengers: Doomsday .

During a recent interview with Entertainment Weekly , Joe and Anthony Russo shared surprising details about Downey Jr.’s commitment to his new character. “We’ve never seen him like this before. Robert immersed himself in Doom’s psychology in an almost obsessive way,” Joe Russo said. “He spent months building a detailed backstory for the character: his childhood traumas, his deepest motivations, even aspects that will never be shown on screen.”
This meticulous, almost theatrical approach is no stranger to Downey Jr., whose portrayal of Tony Stark redefined the superhero genre. However, switching sides and becoming the multiverse’s most feared antagonist represents a whole new challenge. And according to the Russos, Robert has embraced it with unbridled intensity.
“The Doctor Doom we’re creating isn’t just a classic villain with a cape and mask. He’s a broken, brilliant, and dangerous man with a twisted vision of the world,” explained Anthony Russo. “Robert understood that from the very beginning. He didn’t want to simply play Doom; he wanted to become Doom.”
The news has divided fans on social media. Some celebrate the actor’s return to the franchise, albeit with a new, dark face. Others consider it risky to replace his legacy as Iron Man with an antagonistic role that could alter the perception of the character among the most loyal fans.
Despite mixed reviews, expectations are sky-high. Avengers: Doomsday is shaping up to be one of Marvel’s most ambitious films yet, promising a complex narrative, dramatic twists, and the introduction of a new era of heroes and villains. With Robert Downey Jr. at the helm as the calculating and ruthless Doctor Doom, the Russo brothers promise an unprecedented cinematic experience.
For now, we’ll have to wait for the first official trailer, but one thing’s for sure: Downey Jr. is ready to shake up the Marvel Universe… this time from the shadows.