Oscar Isaac Exits Star Wars Event; MCU Fans Speculate Moon Knight's Avengers Role

Hold onto your hats, Marvel fans, because whispers are swirling that Oscar Isaac might be reprising his role as Moon Knight in the upcoming blockbuster, Avengers: Doomsday. While this news might sound like a fan's dream, recent developments are giving these rumors a surprising amount of credibility.

Over the weekend, the official social media for Star Wars Celebration announced that Isaac would no longer be attending the much-anticipated event in Japan this year. The reason? Changes in his production schedule. Back in February, Isaac's confirmed appearance at Star Wars Celebration had sparked speculation about a potential return as Poe Dameron in the Star Wars universe, especially after Daisy Ridley's announcement of her involvement in a new film at the 2023 event.

Although the specifics of Isaac's new commitments remain under wraps, the timing couldn't be more intriguing. *Avengers: Doomsday* is currently being filmed in London, and fans were quick to connect the dots, leading to speculation about Moon Knight joining the Avengers.

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 just that—a theory—it's worth noting that Isaac's name was absent from the initial Avengers: Doomsday cast reveal. However, Marvel Studios producer Kevin Feige hinted at more surprises during a video call at CinemaCon, stating, “We revealed many, not all.” So, could Moon Knight be one of those undisclosed cast members? Only time will tell.

Isaac's portrayal of Moon Knight in the 2022 six-episode series was critically acclaimed, yet Marvel has yet to confirm a second season. Meanwhile, Avengers: Doomsday is slated to hit theaters on May 1, 2026, promising a grand assembly of returning heroes and new faces as teased in the epic livestream.

In other MCU news, fans have been buzzing about Robert Downey Jr.'s recent Doctor Doom-themed birthday invitation, adding another layer of intrigue to the unfolding Marvel saga.

Who was the biggest surprise cast member revealed for Avengers: Doomsday? -------------------------------------------------------------------------

Tenoch Huerta Mejía (Namor)Kelsey Grammer (Beast)David Harbour (Red Guardian)Ian McKellen (Magneto)Lewis Pullman (Sentry)Alan Cumming (Nightcrawler)Rebecca Romijn (Mystique)Channing Tatum (Gambit)Other

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 X-Men presence in the film. Grammer, known for his role as Beast in the Fox X-Men franchise, made his MCU debut in *The Marvels'* post-credits scene. Stewart, who played Charles Xavier/Professor X, had a brief appearance in the MCU in *Doctor Strange in the Multiverse of Madness* as part of the Illuminati. Meanwhile, McKellen (Magneto), Cumming (Nightcrawler), Romijn (Mystique), and Marsden (Cyclops) are yet to make their MCU debuts. This lineup raises an intriguing question: is *Avengers: Doomsday* secretly an Avengers vs. X-Men movie?