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Portrait of Hafþór Júlíus Björnsson

Hafþór Júlíus Björnsson

Bio: 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
Born: Sat, Nov 26 1988
Birthplace: Reykjavík, Iceland
Hafþór Júlíus Björnsson is 36 years old
External Links
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Acting Roles
Crew Roles

Movies (Acting Roles)

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Poster of Masters of the Universe
Masters of the Universe
Hafþór Júlíus Björnsson will be
37 in Masters of the Universe
as 'Goat Man'.
Fri, Jun 05 2026
Poster of Belle
Belle
Hafþór Júlíus Björnsson was
34 in Belle
Fri, Jul 14 2023
Poster of The Northman
The Northman
Hafþór Júlíus Björnsson was
33 in The Northman
as 'Thórfinnr Tooth-Gnasher'.
Thu, Apr 07 2022
Poster of Eddie Hall: The Beast v The Mountain
Eddie Hall: The Beast v The Mountain
Hafþór Júlíus Björnsson was
33 in Eddie Hall: The Beast v The Mountain
as 'Thor "The Mountain"'.
Sat, Mar 19 2022
Poster of Thor vs Eddie
Thor vs Eddie
Hafþór Júlíus Björnsson was
33 in Thor vs Eddie
as 'Himself'.
Sat, Mar 19 2022
Poster of Pharaoh's War
Pharaoh's War
Hafþór Júlíus Björnsson was
30 in Pharaoh's War
as 'فرانك'.
Tue, Jun 04 2019
Poster of Game of Thrones: The Last Watch
Game of Thrones: The Last Watch
Hafþór Júlíus Björnsson was
30 in Game of Thrones: The Last Watch
as 'Self'.
Sun, May 26 2019
Poster of Strongman: Beyond the Mountain
Strongman: Beyond the Mountain
Hafþór Júlíus Björnsson was
30 in Strongman: Beyond the Mountain
as 'Self'.
Sun, Apr 14 2019
Poster of Operation Ragnarok
Operation Ragnarok
Hafþór Júlíus Björnsson was
30 in Operation Ragnarok
as 'Big John - Icelandic Viking Squad'.
Fri, Dec 07 2018
Poster of Fullsterkur
Fullsterkur
Hafþór Júlíus Björnsson was
29 in Fullsterkur
as 'Himself'.
Sun, Aug 26 2018
Poster of Kickboxer: Retaliation
Kickboxer: Retaliation
Hafþór Júlíus Björnsson was
29 in Kickboxer: Retaliation
as 'Mongkut'.
Fri, Jan 26 2018
Poster of Born Strong
Born Strong
Hafþór Júlíus Björnsson was
28 in Born Strong
as 'Self'.
Fri, Nov 03 2017
Poster of NXT TakeOver: Unstoppable
NXT TakeOver: Unstoppable
Hafþór Júlíus Björnsson was
26 in NXT TakeOver: Unstoppable
as 'Himself - Audience Member (as Hafthor Bjornsson)'.
Wed, May 20 2015
Poster of Game of Thrones The IMAX Experience
Game of Thrones The IMAX Experience
Hafþór Júlíus Björnsson was
26 in Game of Thrones The IMAX Experience
as 'Gregor 'The Mountain' Clegane'.
Thu, Jan 29 2015
Poster of The Commissioner of Power
The Commissioner of Power
Hafþór Júlíus Björnsson will be
36+ in The Commissioner of Power
as 'Himself'.
Unreleased

TV Shows (Acting Roles)

Sorted by Release Date
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Poster of Game of Thrones
Game of Thrones
Hafþór Júlíus Björnsson was
22+ in Game of Thrones
as 'Gregor 'The Mountain' Clegane'.
First Air Date
Sun, Apr 17 2011
Poster of The World's Strongest Man
The World's Strongest Man
Hafþór Júlíus Björnsson was
0+ in The World's Strongest Man
as 'Competitor'.
First Air Date
Sat, Dec 24 1977