A new Avengers: Doomsday rumor has potentially shed some light on what the role of The Fantastic Four will be in the upcoming MCU movie.
What is the Fantastic 4’s rumored role in Avengers: Doomsday?
According to a new report from insider MyTimeToShine, the group will be running into Doctor Doom in the upcoming movie. The report notes that Victor Von Doom will be asking the group for help with multiversal “incursions.” They will then “travel together to the MCU” to warn others, and join forces to head to the “X-Men universe,” and try to stop that universe from coming to an end.
The rumor, while not confirmed, does seem to track given what we’ve already seen in The Fantastic Four’s own movie, First Steps. In a post-credits scene, Doom briefly appears in the group’s home, interacting with Franklin Richards. The post-credits scene for Marvel Studios’ Thunderbolts also teases the group’s arrival in their universe.
In Avengers: Doomsday, Victor asks the Fantastic Four for help with the Incursions. They travel together to the MCU in their ship to warn everyone, then join forces to head to the X-Men universe – the source of the next Incursion. They have to fix it before that universe destroys… pic.twitter.com/jnDEF1D1r0
— MyTimeToShineHello (@MyTimeToShineH) January 5, 2026
So far, several major stars from the MCU have been confirmed to appear in the movie, including Chris Hemsworth’s Thor, Pedro Pascal’s Reed Richards, Vanessa Kirby’s Invisible Woman/Sue Storm, Anthony Mackie’s Captain America, Sebastian Stan’s Bucky Barnes/Winter Soldier, Letitia Wright’s Shuri/Black Panther, and Paul Rudd’s Ant-Man.
More names for the upcoming movie include Wyatt Russell’s U.S. Agent/John Walker, Tenoch Huerta’s Namor, Ebon Moss-Bachrach’s The Thing/Ben Grimm, Simu Liu’s Shang-Chi, Florence Pugh’s Yelena Belova, Kelsey Grammer’s Dr. Hank McCoy/Beast, Lewis Pullman’s Bob/Sentry, Danny Ramirez’s Joaquin Torres/Falcon, Joseph Quinn’s Johnny Storm/Human Torch, David Harbour’s Alexei Shostakov/Red Guardian, Winston Duke‘s M’Baku, Hannah John-Kamen‘s Ava Starr/Ghost, and Tom Hiddleston‘s Loki.
Several X-Men characters are also coming back for the upcoming movie, including Patrick Stewart‘s Charles Xavier, Ian McKellen‘s Magneto, Alan Cumming‘s Nightcrawler, Rebecca Romijn‘s Mystique, James Marsden‘s Cyclops, and Channing Tatum‘s Gambit.
Avengers: Doomsday is set to release on December 18, 2026.