According to a new MCU theory, Marvel Studios' next upcoming project is the perfect place to debut Robert Downey Jr.'s Doctor Doom before Phase 6.

The Russo brothers have teased that Tony Stark's legacy will be important to Doctor Doom's story in the MCU, and a new theory explains exactly how.

Anthony Russo was recently asked how they will explain RDJ’s return and his answer was well, mysterious: “We can’t explain that as it’s part of the story,” he said with

Following Marvel's furniture-focused livestream, which revealed some big cast names headed for Avengers: Doomsday, all manner of theories have flooded onto the internet in an effort to anticipate how Robert Downey Jr.

Doomsday concept poster blends the death of Iron Man in the MCU with the debut of the franchise's version of Doctor Doom.

You may think it was the Russo brothers' idea to get Robert Downey Jr. to play Doctor Doom, but the directors revealed that initially, they had no interest in bringing Downey back as the Latverian dictator. Speaking to Omelete, Joe Russo said Downey tried to talk the filmmakers into directing him as Doctor Doom, and they initially refused.

Robert Downey Jr.'s Doctor Doom in Avengers: Doomsday challenges hero-villain norms, as the Russo Brothers reveal. Russo Brothers shared exciting insights into how Downey's portrayal of the iconic character will unfold.

With Robert Downey Jr. set to play Doctor Doom in the MCU, there's one key character flaw that I'm most excited to see him bring to the big screen.