More additions include Liam Cunningham (Camelot) as the onion knight Davos, Natalie Dormer (The Tudors) as Margaery Tyrell, Gwendoline Christie as the knight Brienne, Nonso Anozie as a merchant prince, Tom Wlaschiha as the assassin Jaqen H'gar, Andy Beckwith as Rorge, Roy Dotrice as a pyromancer, M