Hold onto your seats, Marvel fans! Rumors are swirling that Oscar Isaac could be reprising his role as Moon Knight in the upcoming blockbuster, Avengers: Doomsday. The speculation kicked into high gear after Isaac's unexpected withdrawal from Star Wars Celebration in Japan, citing changes in his production schedule. Initially set to appear at the event, fans had hoped for news about Poe Dameron's return to the Star Wars universe, especially after Daisy Ridley's announcement of a new film at the 2023 celebration. However, Isaac's schedule shift has sparked a different kind of excitement among the Marvel community.
While the exact reasons for Isaac's production schedule changes remain under wraps, the timing couldn't be more intriguing. With Avengers: Doomsday currently filming in London, fans are piecing together the puzzle, suggesting that Isaac might be gearing up to join the Avengers. Social media has been abuzz with theories and 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
Despite the fervent speculation, it's important to remember that this is still just a theory. Oscar Isaac was not among the names revealed in the initial cast announcement for Avengers: Doomsday. However, Marvel Studios producer Kevin Feige has hinted that not all cast members were disclosed during the livestream, leaving the door open for surprises. "We revealed many, not all," Feige stated during a video call at CinemaCon, fueling fans' hopes that Moon Knight might indeed make an appearance.
Isaac previously starred as Moon Knight in a six-episode series released in 2022, though no sequel has been 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, the Marvel Cinematic Universe (MCU) community has also been buzzing about Robert Downey Jr.'s recent Doctor Doom-themed birthday party invitation, adding another layer of intrigue to the MCU's future.
Last month's cast reveal for Avengers: Doomsday was notably heavy on veteran X-Men actors, including Kelsey Grammer (Beast), Patrick Stewart (Charles Xavier/Professor X), Ian McKellen (Magneto), Alan Cumming (Nightcrawler), Rebecca Romijn (Mystique), and James Marsden (Cyclops). This has led many to speculate whether Avengers: Doomsday might be setting the stage for an epic Avengers vs. X-Men showdown. Grammer's transition from the Fox X-Men franchise to the MCU via The Marvels' post-credits scene, and Stewart's brief appearance in Doctor Strange in the Multiverse of Madness, indicate a significant integration of the X-Men into the MCU. However, McKellen, Cumming, Romijn, and Marsden have yet to make their MCU debuts, adding to the anticipation and speculation surrounding the film.
