A leaked video from the set of Avengers: Doomsday has taken the internet by storm, just days after the Russo Brothers confirmed that filming is officially underway — with Robert Downey Jr. returning in the powerful new role of Victor Von Doom.
The brief video clip, which surfaced on social media late Monday night, shows a mystery actor dressed in a grey suit, carrying a briefcase, walking toward a suburban-style house. The actor opens the door, enters, and closes it behind him. While the scene appears simple, the lack of a clear view of the actor’s face has ignited a frenzy of speculation among fans.
Many believe the figure could be Robert Downey Jr., shooting his much-anticipated scenes as the iconic supervillain Doctor Doom. However, others suggest the actor may be someone else entirely, potentially teasing a surprise casting.
Fueling further speculation, one tweet floated the theory that actor Julian McMahon — who previously portrayed Doctor Doom in the Fantastic Four films — could be making a return to the Marvel Cinematic Universe as a variant of the character. According to this theory, McMahon’s version may not be a villain, making room for Downey Jr. to embody the darker, central version of Doctor Doom.
On Instagram, the Russo Brothers, who will direct the MCU's next two Avengers movies, shared the first set photo to announce that filming has finally started. While the picture doesn't reveal details from the film, it shows a chair with the name Victor Von Doom.
Avengers: Doomsday is slated for a May 1, 2026 release. The film will likely be set after the events of 'The Fantastic Four: First Steps' which is slated to hit theatres on 25 June 2025.
The brief video clip, which surfaced on social media late Monday night, shows a mystery actor dressed in a grey suit, carrying a briefcase, walking toward a suburban-style house. The actor opens the door, enters, and closes it behind him. While the scene appears simple, the lack of a clear view of the actor’s face has ignited a frenzy of speculation among fans.
Many believe the figure could be Robert Downey Jr., shooting his much-anticipated scenes as the iconic supervillain Doctor Doom. However, others suggest the actor may be someone else entirely, potentially teasing a surprise casting.
Who could this be. ?????? . #AvengersDoomsday. pic.twitter.com/SA8HDDeEIv
— Marvel Leaks (@MarvelLeaks22) April 28, 2025
First look video of a mystery actor spotted on the set of #AvengersDoomsday
— Marvel Guy (@update_marvel) April 28, 2025
(Source: @UnBoxPHD)pic.twitter.com/KwP64yUD2W
Fueling further speculation, one tweet floated the theory that actor Julian McMahon — who previously portrayed Doctor Doom in the Fantastic Four films — could be making a return to the Marvel Cinematic Universe as a variant of the character. According to this theory, McMahon’s version may not be a villain, making room for Downey Jr. to embody the darker, central version of Doctor Doom.
WHAT IF……#AvengersDoomsday https://t.co/QoX6GD1aQN pic.twitter.com/0KIZMMdFPd
— Cam (@dark_spider01) April 28, 2025
On Instagram, the Russo Brothers, who will direct the MCU's next two Avengers movies, shared the first set photo to announce that filming has finally started. While the picture doesn't reveal details from the film, it shows a chair with the name Victor Von Doom.
https://www.instagram.com/p/DI-smScAEpP/ https://www.instagram.com/p/DI-smScAEpP/
Avengers: Doomsday is slated for a May 1, 2026 release. The film will likely be set after the events of 'The Fantastic Four: First Steps' which is slated to hit theatres on 25 June 2025.
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