Game of Thrones: If You Haven't Read the Books, You Need to Know About These Season 6 Characters

This role hasn't been confirmed yet, but it's widely speculated that Grant is playing Izembaro, the leader of a theater troupe. (Essie Davis and Kevin Eldon are playing actors in his new play, "The Bloody Hand.") He's a friend of the Faceless Men, and he comes into contact with Arya in The Winds of Winter.