Hafþór Júlíus Björnsson
Acting
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
2026Masters of the Universe
Goat Man
2026Taming The Beast
Self (archive footage)
2024Finally Dawn
Thot
2023Belle
2022Thor vs Eddie
Himself
2022Eddie Hall: The Beast v The Mountain
Thor "The Mountain"
2022The Northman
Thórfinnr Tooth-Gnasher
2022Eddie Hall: The Beast vs. The Mountain
Self
2019Strongman: Beyond the Mountain
Self
2019Game of Thrones: The Last Watch
Self
2019Pharaoh's War
Frank
2018Operation Ragnarok
Big John - Icelandic Viking Squad
2018Kickboxer: Retaliation
Mongkut
2018Fullsterkur
Himself
2017Born Strong
Self
2015Game of Thrones The IMAX Experience
Gregor 'The Mountain' Clegane
2015NXT TakeOver: Unstoppable
Himself - Audience Member (as Hafthor Bjornsson)
The Commissioner of Power
Himself