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.
Outlast tells the story of a reporter who gets a tip from an anonymous informant that something fishy is going on at a mountain asylum. The reporter goes there to investigate, but when he arrives he realizes that all hell has broken loose already.
