Avengers Spoiler Hints Doctor Doom Connection to Tony Stark

Actor David Harbour may have inadvertently revealed a key plot point for the upcoming Marvel film Avengers: Doomsday during a recent interview, suggesting that the character of Doctor Doom is connected to the late Tony Stark. The film, scheduled for release on December 18, 2026, has been the subject of intense speculation regarding how Robert Downey Jr. will return to the franchise after his character's death in 2019.

In an interview with Variety, Harbour, who plays the Red Guardian, was asked to deliver a line from the movie out of context. He responded in his character's Russian accent, stating, "You are Tony Stark." The moment has sparked widespread fan discussion about whether this is a genuine line from the film, which would imply that a character, likely Harbour's Red Guardian, recognizes the villain Doctor Doom as the former hero Tony Stark from a parallel universe.

This potential spoiler aligns with long-standing fan theories that Downey Jr. is playing a multiversal variant of Tony Stark who has become Doctor Doom. The Marvel Cinematic Universe has previously established the concept of alternate realities, and the 2025 film The Fantastic Four: First Steps revealed that...