first main acting role, and he is the third person to depict the character after Conan Stevens played the role in season 1 and Ian Whyte in season 2, but the first actor to portray Clegane in more than one continuous season, with his appearances in seasons four through eight. He was also cast for the lead role in the Philadelphia Renaissance Faire during their debut season, in 2015. He appeared as 'King Thor', the leader of a Viking raiding party intent on capturing the city of Amman. In 2018, Hafþór played Mongkut, the main villain in Kickboxer: Retaliation, opposite Alain Moussi and Jean-Claude Van Damme, in a story about a kickboxer (Moussi) who is sedated and taken to a prison in Bangkok, where he is forced to fight a giant for freedom and a large sum of money. In the same year, he also played Big John in the film Operation Ragnarok, about a town in the south of Sweden isolated after a viral outbreak and the trapped Swedes and immigrants uniting to survive an onslaught. The next year, he starred with Mike Tyson in the action film Pharaoh's War, about a former soldier (Tyson) with a mysterious past leading a group of Egyptian refugees through the desert to protect them from a group of evil mercenaries. In 2022, Hafþór had a minor role as Thorfinnr the Tooth-Gnasher in the historical epic fantasy The Northman, which starred Alexander Skarsgård, Nicole Kidman, Ethan Hawke, Claes Bang, Anya Taylor-Joy, and Willem Dafoe. Filmography Film Television Other ventures Martial arts Since beginning with boxing, Hafþór has stayed involved in a range of martial arts. In 2020, he appeared on episode ten of Karate Combat, with Bas Rutten and Brazilian jiu-jitsu black belt Josh Palmer, prior to having a training session with Palmer that was released to the public. He then visited Mjolnir MMA to train with UFC veteran Gunnar Nelson in May 2021 and was filmed grappling with the professional fighter. In December 2022, Hafþór met Gordon Ryan prior to his match with Nicky Rodriguez at UFC FightPass Invitational 3 and was filmed having a sparring match with him. Personal life Family and relationships Hafþór had some troubled romantic relationships during his late teens and early twenties, with several ex-girlfriends accusing him of domestic violence, including Thelma Björk Steimann (the mother of his daughter), who feared for her life once during a