The Game of Thrones star has jumped onto the ever-growing list of names attached to Bryan Singer’s next X-Men film.

Yesterday the director tweeted:

Officially like to welcome #PeterDinklage from #GameOfThrones to #XMEN #DaysofFuturePast Very very excited!

— Bryan Singer (@BryanSinger) February 14, 2013

As of yet there is no word on who he will be playing, but fans are speculating that he may take on the role of mutant Puck, an expert martial artist.

Days of Future Past is intended to be a sequel to both The Last Stand and First Class. So far, the cast of First Class are scheduled to return along with X-Men regulars Hugh Jackman, Patrick Stewart and Ian McKellen. Singer has also confirmed that other cast members from the original trilogy including Anna Paquin, Shawn Ashmore and Ellen Page are scheduled to return.

X-Men: Days of Future Past is scheduled for release July 18th, 2014 in the US and UK.