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 story follows a mercenary called V's struggle as they deal with a mysterious cybernetic implant that threatens to overwrite their body with the personality and memories of a deceased celebrity only perceived by V; the two must work together if there is any hope to separate the two and save V's life.
