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.
The game takes place in a large city still recovering from a war decades prior to the game's start, with players taking the role of an amnesiac detective who has been tasked with solving a murder mystery.
