Sometimes the biggest spoiler isn’t a leaked script — it’s an actor forgetting to stay in character. Asked by Variety to deliver a line from Avengers: Doomsday completely out of context, David Harbour — reprising Red Guardian from Black Widow and Thunderbolts* — paused, slipped into Alexei Shostakov’s thick Russian accent, pointed, and said: “You… are Tony Stark.”
Table of Contents
Why That Line Is a Big Deal
Robert Downey Jr. is indeed returning to the MCU in Doomsday — but not as Tony Stark. He’s playing Victor von Doom, Marvel’s most iconic villain. So why would Red Guardian call someone “Tony Stark” if Stark’s been dead since Endgame?
| Detail | What We Know |
|---|---|
| Actor | David Harbour |
| Character | Alexei Shostakov / Red Guardian |
| The line | “You… are Tony Stark” |
| RDJ’s role | Victor von Doom, not Iron Man |
| Release date | December 18, 2026 |
| Leading theory | Doom unmasks, resembling Stark |
Doctor Doom: The Leading Theories
Fans have converged on a few explanations:
- The unmasking scene — Doom removes his mask, and a stunned Red Guardian mistakes him for his old ally.
- A multiversal double — Doom could hail from Earth-828, the parallel universe introduced in The Fantastic Four: First Steps, which hasn’t yet acknowledged its own Stark.
- Deliberate misdirection — Doom disguises himself as Stark to manipulate the Avengers.
- Harbour was simply trolling — Marvel actors are notorious for feeding fans false leads.
Marvel hasn’t confirmed anything, and given the studio’s track record of elaborate misdirection, this could be nothing more than a well-timed joke.
Curious what else is coming from the MCU this year? Track it all on TechnoSports.
FAQs
Is Robert Downey Jr. playing Tony Stark again?
No — he’s playing Doctor Doom, though the character may visually resemble Stark for plot reasons.
When does Avengers: Doomsday release?
The film hits theaters on December 18, 2026.
