Hafþór Júlíus Björnsson
Biography
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.
Known For
TV
Game of Thrones
Gregor 'The Mountain' Clegane
2011
Film
Masters of the Universe
Goat Man
2026
Film
The Northman
Thórfinnr Tooth-Gnasher
2022
Film
Kickboxer: Retaliation
Mongkut
2018
Film
Game of Thrones: The Last Watch
Self
2019
TV
The World's Strongest Man
Competitor
1977
Film
Pharaoh's War
Frank
2019
Film
Finally Dawn
Thot
2024
Film
Game of Thrones The IMAX Experience
Gregor 'The Mountain' Clegane
2015
Film
Taming The Beast
Self
2026
Film
Operation Ragnarok
Big John - Icelandic Viking Squad
2018
Film
Eddie: Strongman
Self
2015
Film
Born Strong
Self
2017
Film
Belle
2023
Film
Strongman: Beyond the Mountain
Self
2019
Film
Fullsterkur
Himself
2018
Film
NXT TakeOver: Unstoppable
Himself - Audience Member (as Hafthor Bjornsson)
2015
Film
Eddie Hall: The Beast v The Mountain
Thor "The Mountain"
2022
Film
Thor vs Eddie
Himself
2022
Film
Eddie Hall: The Beast vs. The Mountain
Self
2022
Filmography
2026FilmTaming The Beastas Self2026FilmMasters of the Universeas Goat Man2024FilmFinally Dawnas Thot2023FilmBelle2022FilmEddie Hall: The Beast vs. The Mountainas Self2022FilmThe Northmanas Thórfinnr Tooth-Gnasher2022FilmThor vs Eddieas Himself2022FilmEddie Hall: The Beast v The Mountainas Thor "The Mountain"2019FilmPharaoh's Waras Frank2019FilmGame of Thrones: The Last Watchas Self2019FilmStrongman: Beyond the Mountainas Self2018FilmOperation Ragnarokas Big John - Icelandic Viking Squad2018FilmFullsterkuras Himself2018FilmKickboxer: Retaliationas Mongkut2017FilmBorn Strongas Self2015FilmEddie: Strongmanas Self2015FilmNXT TakeOver: Unstoppableas Himself - Audience Member (as Hafthor Bjornsson)2015FilmGame of Thrones The IMAX Experienceas Gregor 'The Mountain' Clegane2011TVGame of Thronesas Gregor 'The Mountain' Clegane1977TVThe World's Strongest Manas Competitor—FilmThe Commissioner of Poweras Himself