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.

After a five-and-a-half-hour livestream that revealed Chris Hemsworth, Ian McKellen, Channing Tatum, and more would be in the movie via set chairs, the Iron Man star strolled into frame and sat on his own. He then looked over his right shoulder, put a finger to his lips, and shushed everyone tuning in.

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

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

Long before Robert Downey Jr. became Iron Man, Marvel’s Kevin Feige had envisioned him as the infamous Fantastic Four villain, Victor Von Doom.

The Marvel Cinematic Universe announced the return of Robert Downey Jr. into the franchise, leaving the fans excited for the actor’s appearance on the screen again. However, with one change, the Oscar winner will not be playing the iconic role of Iron Man but will portray the character of Dr.

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.