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. This speculation comes on the heels of a surprising announcement from Star Wars Celebration, which revealed that Isaac had to cancel his appearance at the event in Japan due to changes in his production schedule.
Back in February, Isaac's scheduled appearance at Star Wars Celebration had sparked excitement and speculation about his potential return to the Star Wars universe as Poe Dameron, especially after Daisy Ridley announced her involvement in a new Star Wars film at the 2023 event. However, with Isaac's recent schedule shift, fans are now buzzing about a different possibility.
While the exact nature of Isaac's new commitments remains under wraps, the fact that Avengers: Doomsday is currently in production in London has led many to connect the dots. Social media has been abuzz with fans speculating about Moon Knight's involvement in the 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
Despite the excitement, it's important to remember that this is still just a theory. Oscar Isaac was not mentioned in the official cast reveal for Avengers: Doomsday. However, Marvel Studios producer Kevin Feige hinted at more surprises to come, stating in a video call at CinemaCon, "We revealed many, not all," which keeps the door open for potential new additions to the cast.
Isaac previously starred in the six-episode series Moon Knight in 2022, but no follow-up season has been announced yet. Avengers: Doomsday is slated for release on May 1, 2026, and promises to feature a roster of returning heroes and beloved characters.
In other MCU news, fans are also intrigued by Robert Downey Jr.'s recent Doctor Doom-themed birthday party invitation, adding another layer of mystery to the MCU's future plans.
The cast reveal for Avengers: Doomsday last month was a major event, particularly for fans of the X-Men franchise. Notable actors such as Kelsey Grammer, Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, and James Marsden have been confirmed to join the film, suggesting a significant role for the X-Men. Grammer, who played Beast, made his MCU debut in The Marvels' post-credits scene, while Stewart appeared as Professor X in Doctor Strange in the Multiverse of Madness. McKellen, Cumming, Romijn, and Marsden are set to make their MCU debuts, leading to speculation about whether Avengers: Doomsday could be setting the stage for an epic Avengers vs. X-Men showdown.
