The White Walker Lieutenant is often confused with another white walker because they have similar hairstyles, but this one is called the White Walker Lieutenant and is played by actor Tim Loane. The lieutenant is featured heavily in the epic episode “Hardhome.” He’s the walker that fights with Jon and is killed by him and his Valyrian steel blade, Longclaw. Loane is actually better known as a writer for TV than an actor, having written episodes for the TV shows Teachers, Casualty, Red Rock, and Versailles. His appearance in “Hardhome” is the only time he shows up in Game of Thrones, but it’s one of the best moments from the walkers. He’s also got that really amazing ice sword.