Rumors are swirling that Oscar Isaac might reprise his role as Moon Knight in the upcoming blockbuster, Avengers: Doomsday. Fans were taken aback by the news, but recent developments have lent some credibility to the speculation.
Over the weekend, Star Wars Celebration's official social media announced that Isaac would not be attending the much-anticipated convention in Japan due to changes in his production schedule. Isaac's planned appearance at Star Wars Celebration had previously sparked rumors of his return as Poe Dameron in the Star Wars universe, especially after Daisy Ridley's announcement of her involvement in a new Star Wars film at the 2023 event.
Although the specifics of Isaac's production schedule changes were not disclosed, fans quickly connected the dots, noting that Avengers: Doomsday is currently being filmed in London. Social media buzzed with speculation about Isaac's potential involvement in the Avengers film.
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 is known for its surprises. Although Isaac was not part of the announced cast for Doomsday, Marvel producer Kevin Feige hinted at more cast members during a CinemaCon video call, stating, "We revealed many, not all." This leaves room for speculation and hope among fans.
Isaac previously starred as Moon Knight in a six-episode series released in 2022, with no follow-up announced yet. Avengers: Doomsday is slated for release on May 1, 2026, promising a grand ensemble of returning heroes and new faces as showcased in the epic livestream.
Meanwhile, MCU enthusiasts are also buzzing about Robert Downey Jr.'s recent Doctor Doom-themed 60th birthday party invitation, adding more layers of intrigue to the Marvel universe.
AnswerSee ResultsLast month's Avengers: Doomsday cast reveal featured a significant number of veteran X-Men actors. Kelsey Grammer, Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, and James Marsden are all confirmed to appear, signaling a major role for the X-Men in the film. Grammer, who played Beast in the Fox X-Men franchise, made his MCU debut in The Marvels' post-credits scene. Stewart, known for his role as Charles Xavier/Professor X, had a brief appearance in the MCU through Doctor Strange in the Multiverse of Madness as part of the Illuminati. McKellen, who portrayed Magneto, has yet to appear in the MCU, along with Cumming as Nightcrawler, Romijn as Mystique, and Marsden as Cyclops. This raises an intriguing question: is Avengers: Doomsday secretly an Avengers vs. X-Men movie?
