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

HD

Masters of the Universe

2026 ⭐ 7.3

HD

Finally Dawn

2024 ⭐ 6.1

HD

The Northman

2022 ⭐ 7.0

HD

Pharaoh's War

2019 ⭐ 6.4

Career timeline

2026

Masters of the Universe Notable

Goat Man · 2026

⭐ 7.3

Taming The Beast

Self · 2026

2024

Finally Dawn

Thot · 2024

⭐ 6.1

2023

Belle

2023

⭐ 5.5

2022

Eddie Hall: The Beast vs. The Mountain

Self · 2022

The Northman Notable

Thórfinnr Tooth-Gnasher · 2022

⭐ 7.0

Thor vs Eddie

Himself · 2022

2021

The Commissioner of Power

Himself · 2021

2019

Pharaoh's War

Frank · 2019

⭐ 6.4

Game of Thrones: The Last Watch Notable

Self · 2019

⭐ 7.0

Strongman: Beyond the Mountain

Self · 2019

2018

Operation Ragnarok

Big John - Icelandic Viking Sq · 2018

⭐ 5.5

Fullsterkur Notable

Himself · 2018

⭐ 7.0

Kickboxer: Retaliation

Mongkut · 2018

⭐ 5.4

2017

Born Strong

Self · 2017

⭐ 6.9

2015

Eddie: Strongman

Self · 2015

⭐ 6.8

NXT TakeOver: Unstoppable Notable

Himself - Audience Member (as · 2015

⭐ 8.4

Game of Thrones The IMAX Experience Notable

Gregor 'The Mountain' Clegane · 2015

⭐ 8.6

Frequently appears with

Nicholas Galitzine

Adam Glenn / He-Man

Camila Mendes

Teela

Idris Elba

Duncan / Man-At-Arms

Jared Leto

Skeletor

Alison Brie

Evil-Lyn

Lily James

Josephine Esperanto

Rebecca Antonaci

Mimosa

Joe Keery

Sean Lockwood

Rachel Sennott

Nan Roth

Alba Rohrwacher

Alida Valli

Full filmography

HD

Masters of the Universe

2026 ⭐ 7.3

HD

Taming The Beast

2026

HD

Finally Dawn

2024 ⭐ 6.1

HD

Belle

2023 ⭐ 5.5

HD

Eddie Hall: The Beast vs. The Mountain

2022

HD

The Northman

2022 ⭐ 7.0

HD

Thor vs Eddie

2022

HD

Eddie Hall: The Beast v The Mountain

2022

HD

The Commissioner of Power

2021

HD

Pharaoh's War

2019 ⭐ 6.4

HD

Game of Thrones: The Last Watch

2019 ⭐ 7.0

HD

Strongman: Beyond the Mountain

2019

HD

Operation Ragnarok

2018 ⭐ 5.5

HD

Fullsterkur

2018 ⭐ 7.0

HD

Kickboxer: Retaliation

2018 ⭐ 5.4

HD

Born Strong

2017 ⭐ 6.9

HD

Eddie: Strongman

2015 ⭐ 6.8

HD

NXT TakeOver: Unstoppable

2015 ⭐ 8.4

HD

Game of Thrones The IMAX Experience

2015 ⭐ 8.6