Harry Charles Salusbury Lloyd is an English actor. He is known for his roles as Will Scarlet in the 2006 BBC drama Robin Hood, Jeremy Baines in the 2007 Doctor Who episodes "Human Nature" and "The Family of Blood", Viserys Targaryen in the first season of the HBO series Game of Thrones, Peter Quayle in the Starz series Counterpart, Charles Xavier in the third season of the FX series Legion, Bernard Marx in the Peacock series Brave New World, and Viktor in the Netflix series Arcane. He has also appeared on stage, and in films including The Theory of Everything and Anthropoid.