AceShowbiz - Kelsey Grammer is set to return to the Marvel Cinematic Universe as Dr. Henry 'Beast' McCoy in the upcoming film Avengers: Doomsday, Superherohype reports. The movie is scheduled to hit theaters on December 18, 2026, marking a major crossover event featuring both new and returning Avengers characters.

The release date for Avengers: Doomsday was also confirmed by Geektyrant, which emphasized the film’s significance as the first live-action team-up of these heroes. Yahoo further added that Grammer’s involvement was publicly announced in March 2025, highlighting his excitement about reuniting with former X-Men co-stars for the project. Geektyrant explained that while plot details remain tightly under wraps, the film will expand on the MCU’s integration of the X-Men, with Grammer’s role as Beast being more prominent than his brief MCU tease in The Marvels. Grammer appeared in a cameo in that film, which featured a post-credits scene hinting at the X-Men’s arrival in the MCU universe.

Kelsey Grammer is widely recognized for his portrayal of Dr. Frasier Crane in the iconic TV series Cheers and Frasier. His extensive career spans nearly 100 credits, including memorable appearances in major films like X-Men: The Last Stand and Transformers: Age of Extinction. Grammer’s Emmy-winning legacy and varied roles across film and television demonstrate his versatility, which he now brings to this high-profile Marvel project.

This casting underscores Marvel’s ongoing strategy to blend legacy characters with fresh storylines, broadening the franchise’s appeal. Grammer’s return as Beast not only satisfies longtime fans but also signals a deeper integration of the mutant saga into the MCU’s future, setting the stage for a highly anticipated December 2026 release.

This article is based on reporting originally published by Superherohype.