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.
Excalibur is a fictional superhero group appearing in comic books published by Marvel Comics. They are depicted as an offshoot of the X-Men, usually based in the United Kingdom.
