Guest Stars Jacob Anderson as Grey Worm Ben Crompton as Eddison Tollett Julian Glover as Grand Maester Pycelle Hafþór Júlíus Björnsson as Ser Gregor Clegane Anton Lesser as Qyburn Owen Teale as Alliser Thorne Diana Rigg as Lady Olenna Tyrell Brenock O'Connor as Olly Art Parkinson as Rickon Stark Natalia Tena as Osha Roger Ashton-Griffiths as Lord Mace Tyrell Brian Fortune as First Builder Othell Yarwyck Staz Nair as Qhono Faye Marsay as The Waif Ian Gelder as Ser Kevan Lannister Michael Condron as Bowen Marsh Robert Aramayo as Young Eddard 'Ned' Stark Kae Alexander as Leaf Joseph Naufahu as Khal Moro Meena Rayann as Meereenese Prostitute Max Von Sydow as Three-Eyed Raven Diogo Sales as Moro's Bloodrider Junade Khan as Moro's Bloodrider Paul Rattray as Lord Harald Karstark Hannah John-Kamen as Dothraki widow Dean S. Jagger as Smalljon Umber Souad Faress as High Priestess of the Dosh Khaleen Annette Hannah as Frances Nathanael Saleh as Arthur Fionn Kernan as Little Bird Lucy Gallagher as Little Bird Iona Clarke as Little Bird Jesse Magee as Little Bird Michael Nevin as Little Bird Wuese Houston-Jibo as Dothraki Widow Angelique Fernandez as Dothraki Widow Luke Roberts as Ser Arthur Dayne Eddie Eyre as Oswell Whent