Archive · 20 Aug 2026
David Harbour Line Sparks Tony Stark Comeback Theories
David Harbour is coming back to play Red Guardian in Avengers: Doomsday.
He may have said something that mentioned Tony Stark.
Tony Stark is the superhero played by Robert Downey Jr. Downey is returning to Marvel, but he will play the villain Victor von Doom instead of Iron Man.
This has made fans wonder whether Tony Stark could appear again somehow.
The article says the mysterious line may be a clue, but it does not provide the exact words.
The movie is expected to bring together heroes from the Fantastic Four, the X-Men, and a new group of Avengers.
These ideas are theories, not confirmed details.
David Harbour is returning as Alexei Shostakov, also known as Red Guardian, in Avengers: Doomsday.
The actor reportedly appeared to reveal a mysterious line involving Robert Downey Jr.’s Tony Stark.
Robert Downey Jr. is returning to the Marvel Cinematic Universe, but not as Iron Man.
Downey is set to play Victor von Doom, the Fantastic Four villain, in Avengers: Doomsday.
The reported clue has prompted theories that Tony Stark could somehow return despite Downey’s new role.
- Who
- David Harbour, Robert Downey Jr., Tony Stark, and Victor von Doom are central to the report.
- What
- A reported mysterious line by Harbour has sparked theories about Tony Stark appearing in Avengers: Doomsday.
- When
- The article does not specify when Harbour made the reported remark.
- Where
- The article does not specify where the remark was made; the story concerns the Marvel Cinematic Universe.
- Why
- Fans are speculating because Robert Downey Jr. is returning to Marvel as Victor von Doom rather than Iron Man.
- Film
- Avengers: Doomsday
- David Harbour’s role
- Alexei Shostakov, also known as Red Guardian
- Robert Downey Jr.’s announced role
- Victor von Doom
- Tony Stark’s connection
- Tony Stark was played by Robert Downey Jr. in the Marvel Cinematic Universe
- Reported clue
- A mysterious line involving Tony Stark
- Expected heroes
- The Fantastic Four, the X-Men, and a new group of Avengers
- Status of comeback theory
- Unconfirmed speculation based on the reported line