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.
Hal is trying to have an ordinary life after the Sinestro war and the death of Parallax, but the relationship problems with Carol and the rising of new enemies and allies, will force him to wear the ring again
