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'Avengers: Doomsday' assembles: Robert Downey Jr., Rebecca Romijn and more join star-studded cast

4:59
'The Fantastic Four' cast discusses new film
Marvel Entertainment
ByMary Pat Thompson
March 26, 2025, 9:53 PM

The Avengers are assembling. Again.

Marvel announced the cast of "Avengers: Doomsday" during a livestream and on its social media channels on Wednesday. It also revealed that the film is now in production.

During the five-hour-long livestream, many of the film's cast members were revealed, with their names appearing on the back of a long line of director's chairs.

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Cast members include Chris Hemsworth as Thor, Tom Hiddleston as Loki, Anthony Mackie as Captain America, Sebastian Stan as Bucky Barnes, Letitia Wright as Shuri, Paul Rudd as Ant-Man, Wyatt Russell as U.S. Agent, Tenoch Huerta Mejía as Namor, Simu Liu as Shang-Chi, Florence Pugh as Yelena Belova, Danny Ramirez as Joaquin Torres, David Harbour as Alexei Shostakov, Winston Duke as M'Baku and Hannah John-Kamen as Ava Starr.

Superheroes that audiences have yet to see in the Marvel Cinematic Universe will also join this new ensemble. This includes the new Fantastic Four crew of Pedro Pascal, who plays Mister Fantastic; Vanessa Kirby, who plays Sue Storm; Ebon Moss-Bachrach as The Thing; and Joseph Quinn as Johnny Storm. All four actors will make their Marvel debut in the upcoming film "The Fantastic Four: First Steps," which releases in theaters on July 25.

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Lewis Pullman also joins the movie in the role of Bob Reynolds, or Sentry. He will debut the character in the upcoming film "Thunderbolts*," which releases May 2.

Alan Cumming, Feb. 22, 2025 in Pitlochry, England and Lewis Pullman, June, 9, in Los Angeles.
Getty Images

Notably, many actors from the "X-Men" franchise have joined the film, including Patrick Stewart, who famously played Professor Charles Xavier and previously made a cameo in the 2022 film "Doctor Strange in the Multiverse of Madness."

Kelsey Grammer has also joined the film's cast. He previously reprised his "X-Men" role as Beast in the post-credits scene of the 2023 film "The Marvels." Ian McKellen will appear in "Avengers: Doomsday" as well, having previously played Magneto in the "X-Men" films. Alan Cumming, who played Nightcrawler in "X2: X-Men United," is also set to be in the movie, along with Rebecca Romijn, who played Mystique in the "X-Men" franchise, and James Marsden, who played Cyclops.

Another name joining the packed cast is Channing Tatum, who previously appeared in the 2024 blockbuster "Deadpool & Wolverine" as Gambit.

The livestream ended with an appearance from Robert Downey Jr., the only person to appear in the announcement. Downey turned to look at the camera before gesturing to the long line of chairs representing the large ensemble cast.

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In this July 27, 2024, file photo, Robert Downey Jr. speaks onstage during the Marvel Studios Panel in Hall H at SDCC in San Diego, Calif.
Jesse Grant/Getty Images for Disney, FILE

Downey's return to the MCU in the upcoming Avengers film was announced at San Diego Comic-Con in July 2024. Instead of playing Iron Man, however, Downey will play the villain Doctor Doom this time around.

"Avengers: Doomsday" finds brothers Joe and Anthony Russo back in the directors chairs. They return to Marvel having helmed the Captain America films "Captain America: The Winter Soldier" and "Captain America: Civil War," as well as "Avengers: Infinity War" and "Avengers: Endgame."

"Avengers: Doomsday" crashes into movie theaters on May 1, 2026.

Disney is the parent company of Marvel and ABC News.

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  • Marvel

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