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.
When the Kang variant, the Anti-Monitor attacks the Multiverse, wiping universes from reality, one of his counterparts, The Monitor, must unite Heroes from across time and space to help save the world as we know. Most Earth numbers differ from the numbers mentioned in the Arrowverse.
