The Thenn Warg was a new character in Game of Thrones that fans of the books didn’t expect. Played by Joseph Gatt, the Thenn Warg didn’t have a name but he was memorable in that he’s one of the few wargs we see take control of animals (his animal was an owl). This Thenn was killed by Samwell Tarly with a crossbow bolt through the head. The actor, Gatt, is fairly recognizable as he has Alopecia Universalis, a rare condition that caused him to lose all his hair at a young age. Gatt’s most familiar work has come from his roles as Grundworth, a Frost Giant in Thor, the Albino in Banshee, and for video game fans, the role of Kratos in the God of War series.