Guest Stars Daniel Portman as Podrick Payne Jacob Anderson as Grey Worm Ben Crompton as Eddison Tollett Julian Glover as Grand Maester Pycelle Ian McElhinney as Ser Barristan Selmy Anton Lesser as Qyburn Owen Teale as Alliser Thorne Ian Beattie as Ser Meryn Trant Brenock O'Connor as Olly Nell Tiger Free as Princess Myrcella Baratheon Roger Ashton-Griffiths as Lord Mace Tyrell Brian Fortune as First Builder Othell Yarwyck Dominic Carter as Lord Janos Slynt Peter Vaughan as Maester Aemon Ian Gelder as Ser Kevan Lannister Kerry Ingram as Shireen Baratheon Tara Fitzgerald as Selyse Baratheon Michael Condron as Bowen Marsh Joel Fry as Hizdahr zo Loraq Deobia Oparei as Areo Hotah Alexander Siddig as Prince Doran Martell Toby Sebastian as Trystane Martell Reece Noi as Mossador Gary Oliver as Braavosi Captain Elizabeth Cadwallader as Lollys Stokeworth J.J. Murphy as Denys Mallister Thomas Fava as Street Tough Derek Lord as Military Officer Winston Davis as Street Tough 2