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.
Set in a world where "Supers", people gifted with superpowers and abilities, are commonplace, the film follows a family of superheroes living a quiet suburban life, forced to hide their powers due to public concern about the damage supers cause.
