Rumors are swirling that Oscar Isaac might reprise his role as Moon Knight in the upcoming film Avengers: Doomsday. This speculation gained traction after Star Wars Celebration announced that Isaac would not be attending their event in Japan due to changes in his production schedule. Initially, fans were buzzing about a potential return of Isaac's character Poe Dameron in a new Star Wars project, especially after Daisy Ridley announced her involvement in a new film at the 2023 Star Wars Celebration.
The exact nature of Isaac's scheduling conflicts remains undisclosed, but with Avengers: Doomsday currently in production in London, fans quickly connected the dots, suggesting a possible Moon Knight appearance. Social media buzzed with excitement:
He’s gonna be filming doomsday?
— James Young (@YoungJames34) April 4, 2025
Dooooomsday
— G the Gamer (@G_da_Gamer) April 4, 2025
Doomsday
— Taco John (@SWaddict_) April 4, 2025
While the theory remains unconfirmed, Marvel Studios producer Kevin Feige hinted that not all cast members were revealed during the Doomsday livestream, stating, "We revealed many, not all," during a CinemaCon video call. This leaves room for surprises, including Isaac's potential involvement.
Isaac previously starred in the 2022 six-episode series Moon Knight, but no sequel has been officially announced yet. Avengers: Doomsday is slated for release on May 1, 2026, promising a lineup of returning heroes and new faces.
Meanwhile, MCU enthusiasts are also intrigued by Robert Downey Jr.'s recent Doctor Doom-themed birthday invitation, adding another layer of speculation to the mix.
AnswerSee ResultsLast month's Avengers: Doomsday cast reveal spotlighted several veteran X-Men actors, including Kelsey Grammer, Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, and James Marsden. This confirms the X-Men's significant role in the film. Grammer, known for his portrayal of Beast in the Fox X-Men franchise, made his MCU debut in The Marvels' post-credits scene. Stewart, who played Charles Xavier/Professor X in the X-Men films, appeared briefly in the MCU in Doctor Strange in the Multiverse of Madness as a member of the Illuminati. McKellen, Cumming, Romijn, and Marsden, who played Magneto, Nightcrawler, Mystique, and Cyclops respectively, have yet to make their MCU debut. This raises the question: is Avengers: Doomsday secretly an Avengers vs. X-Men movie?
