Conan Stevens is an Australian professional wrestler, actor and scriptwriter. He is 7' 1/4" in height.
In Game of Thrones he is playing the role of Gregor Clegane. He made himself known to the fan community and to the series producers early in the development of the series and lobbied for the role, gaining fan support due to his enthusiasm for the project. He auditioned for the part of Khal Drogo in the pilot so as to put his name in circulation for Gregor when auditioning for the series itself took place. He was confirmed in the role by Westeros.org on 7 July 2010.