Name: Hafþór Júlíus Björnsson
Birthday: 26 November 1988
Deathday: null
Place of Birth: Reykjavík, Iceland
Known For: Acting
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.
