Kelsey Grammer Discusses His Deep Connection to Beast Ahead of ‘Avengers: Doomsday’

‘Avengers: Doomsday‘ has spent nearly a year assembling one of the largest ensembles in blockbuster history, featuring names from both the MCU’s current roster and the Fox-era X-Men films that predate Marvel Studios’ ownership of the characters. Among the legacy returns, Kelsey Grammer stepping back into blue fur as Beast has generated significant buzz.

Grammer first portrayed Hank McCoy in 2006’s ‘X-Men: The Last Stand,’ later making a brief cameo in ‘X-Men: Days of Future Past.’ A fully realized, comic-accurate version of the character appeared in the closing moments of 2023’s ‘The Marvels,’ effectively setting the stage for Beast’s arrival in the wider Marvel Cinematic Universe. ‘Doomsday’ is where that setup finally pays off.

What makes Grammer’s return remarkable isn’t solely the nostalgia factor. The actor has openly shared how personally the role resonates with him, describing Beast as a figure of stature and integrity who embodies the belief that actions define a person’s true character. He has drawn a parallel between the character and Martin Luther King, portraying Beast as a moral compass for the mutant community rather than just a super-strong scientist with claws.

Grammer has also elaborated on the character’s temperament, depicting Beast as someone who is slow to act but relentless once committed to a fight, giving no quarter and expecting none in return. He has called playing the role one of the great opportunities of his life and expressed confidence that fans will be pleased with how the character is portrayed when ‘Doomsday’ finally hits theaters.

This isn’t the first time Grammer has made the King comparison. He has made similar remarks in other interviews over the past year, consistently returning to the notion that Beast possesses a dignity and sense of purpose that distinguishes him from the rest of the X-Men roster. This throughline suggests that the comparison isn’t merely a talking point for press rounds but something Grammer has genuinely internalized over nearly two decades of portraying the character.

Beast won’t be returning alone. Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, and James Marsden are all expected to reprise their Fox-era X-Men roles alongside Channing Tatum’s Gambit, marking one of the biggest reunions of that franchise’s original ensemble to date.

The first trailer for ‘AVENGERS: DOOMSDAY’ has been released.

In theaters on December 18. pic.twitter.com/AlSIXL32CD

— DiscussingFilm (@DiscussingFilm) July 20, 2026

They will join an already massive lineup of MCU regulars, including Chris Hemsworth’s Thor, Anthony Mackie’s Captain America, Sebastian Stan’s Winter Soldier, Florence Pugh’s Yelena Belova, Letitia Wright’s Shuri, and Paul Rudd’s Ant-Man, among many others from across the franchise’s Fantastic Four, Thunderbolts, and Shang-Chi corners. This roster size rivals, and in some respects exceeds, previous ‘Avengers’ crossover events.

‘Avengers: Doomsday’ is set to hit theaters on December 18, culminating years of setup across both the X-Men legacy films and the current MCU slate in a single crossover event. For longtime fans of the Fox X-Men movies, Grammer’s return as Beast represents one of the more emotionally charged reunions in an already stacked cast list.

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