who does hafthor bjornsson play in game of thrones
Hafþór Júlíus Björnsson Hafþór Júlíus "Thor" Björnsson (Icelandic pronunciation: ​[ˈhafθour ˈjuːliʏs ˈpjœsːɔn]; born November 26, 1988) 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.
Jack Gleeson Jack Gleeson (born 20 May 1992)[1] is a former Irish actor, best known for his portrayal of Joffrey Baratheon in the HBO television series Game of Thrones.