Actor David Harbour's recent remark has fueled fan theories regarding the return of Tony Stark in the upcoming film Avengers: Doomsday.

During an interview with Variety, Avengers: Doomsday actor David Harbour delivered the line, "You … are Tony Stark," while in character as Red Guardian. This comment has prompted speculation about the role of Robert Downey Jr., who is officially cast as the villain Victor von Doom in the film. The remark contrasts with Marvel's marketing, which maintains that Downey Jr. is playing the antagonist and that Stark remains dead following the events of Avengers: Endgame.

Fan theories and visual evidence

Following the release of a new trailer at Disney’s D23 event in Anaheim, fans have scrutinized the footage for clues. Some viewers pointed to the blue eyes of the masked villain, which differ from Downey Jr.’s brown eyes, while others noted discrepancies between the costume displayed at D23 and the version shown at San Diego Comic-Con in July. These observations have led to theories suggesting the presence of multiple character incarnations or the potential involvement of other actors, such as Cillian Murphy.

Context of the remark

The article notes that Harbour’s statement could be a joke or a misunderstanding of his character's perspective. As Red Guardian, Harbour’s character might simply be reacting to the physical resemblance of a person who looks like Tony Stark. Marvel has not confirmed any connection between the new villain and the deceased character, despite Downey Jr.'s return to the franchise.