The Mountain, also known as Hafþór Júlíus Björnsson, is an Icelandic professional strongman and actor. He gained fame for his role as Gregor Clegane, or "The Mountain," in the television series Game of Thrones. Standing at 6 feet 9 inches tall and weighing over 400 pounds, he is known for his incredible strength and size. In addition to his acting career, The Mountain has won several prestigious strongman competitions, including the World's Strongest Man title in 2018. His training regimen and diet are rigorous, allowing him to perform feats of strength such as lifting heavy weights and competing in various strength-related events.