Hafþór Júlíus Björnsson is an Icelandic professional strongman, actor, and former professional basketball player.
He plays Ser Gregor "The Mountain" Clegane in the HBO series Game of Thrones.
This is Nando v Movies' fancast for the X-Men (First Class, Giant Size, and Next Gen) and some of their respective villains. Specifically, it would be for their inclusion in the Marvel Cinematic Universe.
