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.
For over 60 years, fans have wondered what it would be like if the Marvel Universe heroes battled those of the DC Universe. They've gotten their wish on several occasions in comic book form, but what about on screen?
