Remember when Tyrion formed an alliance with the leaders from the hill tribes back in season one? Well the one that got the most screen time was Shagga. Shagga would often recite his name as Shagga, son of Dolf and leader of the Stone Crows. He would also wear a tight-fitting helmet that covered much of his face. On the show, Shagga and his friends seem to disappear after the Battle of the Green Fork, which was weird. Still, the actor behind the helmet was Mark Lewis Jones. Jones is a Welsh actor who has been in a number of reputable films and TV shows, including Torchwood, Merlin, Waking the Dead, Master and Commander: The Far Side of the World, Troy, and Robin Hood. Keep your eyes peeled when watching Star Wars: The Last Jedi as well, because Jones has been cast as Captain Canady in that highly anticipated film.