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.
After Peter Parker a.k.a Spider-Man fights Eddie Brock a.k.a Venom and Cletus Kasady escapes from prison as a consequence(Hypothetical Venom 2), we realize that a part of the symbiote has joined him. Now Kasady calls himself Carnage and a bloody massacre is about to begin.
