Acting
Hafþór Júlíus Björnsson
Born 1988-11-26
Reykjavík, Iceland
Department: Acting
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
Prominent works featuring Hafþór Júlíus Björnsson
TV
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Game of Thrones
2011
TMDB4.3
Movie
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The Northman
2022
TMDB3.5
Movie
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Masters of the Universe
2026
TMDB3.5
Movie
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Game of Thrones: The Last Watch
2019
TMDB3.5
Movie
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Kickboxer: Retaliation
2018
TMDB2.7
TV
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The World's Strongest Man
1977
TMDB3.5
Movie
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Finally Dawn
2024
TMDB3.0
Movie
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Pharaoh's War
2019
TMDB3.2
Movie
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Game of Thrones The IMAX Experience
2015
TMDB4.3
Movie
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Born Strong
2017
TMDB3.5
Filmography & Credits
Complete career catalog (21 titles)
| Poster | Title | Character / Role | Type | Year |
|---|---|---|---|---|
 | Masters of the Universe | Goat Man | Movie | 2026 |
 | Taming the Beast | Self | Movie | 2026 |
 | Finally Dawn | Thot | Movie | 2024 |
 | Belle | Self / Appearance | Movie | 2023 |
 | Eddie Hall: The Beast vs. The Mountain | Self | Movie | 2022 |
 | The Northman | Thórfinnr Tooth-Gnasher | Movie | 2022 |
 | Thor vs Eddie | Himself | Movie | 2022 |
 | Eddie Hall: The Beast v The Mountain | Thor "The Mountain" | Movie | 2022 |
 | The Commissioner of Power | Himself | Movie | 2021 |
 | Pharaoh's War | Frank | Movie | 2019 |
 | Game of Thrones: The Last Watch | Self | Movie | 2019 |
 | Strongman: Beyond the Mountain | Self | Movie | 2019 |
 | Operation Ragnarok | Big John - Icelandic Viking Squad | Movie | 2018 |
 | Fullsterkur | Himself | Movie | 2018 |
 | Kickboxer: Retaliation | Mongkut | Movie | 2018 |
 | Born Strong | Self | Movie | 2017 |
 | Eddie: Strongman | Self | Movie | 2015 |
 | NXT TakeOver: Unstoppable | Himself - Audience Member (as Hafthor Bjornsson) | Movie | 2015 |
 | Game of Thrones The IMAX Experience | Gregor 'The Mountain' Clegane | Movie | 2015 |
 | Game of Thrones | Gregor 'The Mountain' Clegane | TV Series | 2011 |
 | The World's Strongest Man | Competitor | TV Series | 1977 |