Game Of Thrones Universe Star Reportedly Joining MCU's X-Men Reboot In Key Role

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x-men team led by wolverine and including cyclops and storm

Published Oct 25, 2026, 12:43 PM EDT

Rianna is the Movie News Editor for ScreenRant. After earning her BA in Film Studies, she began her career as an entertainment writer, contributing to several publications before joining ScreenRant. Her dissertation on the impact of streaming on traditional cinema sharpened her focus on the ever-evolving world of film and media. With 10 years in the industry, Rianna continues to cover the stories she loves while also advocating for awareness and representation of rare disabilities, such as Moebius Syndrome, which she lives with.

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Marvel's X-Men reboot has added a Game of Thrones alum.

The X-Men were created by Stan Lee and Jack Kirby, debuting in The X-Men #1 in 1963, and slowly became a multi-billion-dollar franchise. The first line-up included Professor Charles Xavier, Cyclops, Jean Grey/Marvel Girl, Beast, Angel, and Iceman. The comics have been adapted numerous times, including a live-action movie franchise, leading to numerous spinoffs, sequels, and prequels. Now, Marvel Studios is revitalizing the X-Men franchise with a major reboot.

In a new report by Knight Edge Media, it has been seemingly revealed that A Knight of the Seven Kingdoms star Peter Claffey has been cast as Hank McCoy, otherwise known as Beast, in the Marvel Studios X-Men reboot. Claffey, taking on the role, has been heavily rumored to portray the Beast alongside Charles Melton. However, the Irish actor seemingly got the role in Marvel Studios' reboot after a record-breaking run as Sir Duncan the Tall in HBO's Game of Thrones spinoff.

ScreenRant has reached out to Disney for comment.

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