Guest Stars Nathalie Emmanuel as Missandei Daniel Portman as Podrick Payne Jacob Anderson as Grey Worm Ian McElhinney as Ser Barristan Selmy Anton Lesser as Qyburn Michiel Huisman as Daario Naharis Owen Teale as Alliser Thorne Diana Rigg as Lady Olenna Tyrell Ian Beattie as Ser Meryn Trant Indira Varma as Ellaria Sand Dominic Carter as Lord Janos Slynt Brian Fortune as First Builder Othell Yarwyck Peter Vaughan as Maester Aemon Pedro Pascal as Prince Oberyn Martell Will Tudor as Olyvar Tony Way as Dontos Hollard Andy Kellegher as Polliver Co Starring Josephine Gillan as Marei Sara Dylan as Hand Maid Joseph Gatt as Thenn Warg Stuart Martin as Morgan's Friend Kristen Gillespie as Whore Chris Reilly as Morgan Tommy Dunne as Valyrian Sword Smith Daniel Rabin as Lord Blackmont Dez McMahon as Callous Baratheon Gabrielle Dempsey as Innkeeper’s Daughter Martin Walsh as Innkeeper