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.
Gon Freecss father left him as a child to become a Hunter. Now Gon has the same dream and goes on an adventure with companions Killua, Kurapika and Leorio.
