The penultimate episode of House of the Dragon season 3 contained a stunning sequence that is destined to go down as one of the best for the entire show: the return of Sunfyre, Aegon Targaryen's dragon. Tom Glynn-Carney as Aegon Targaryen in House of the Dragon season 3 episode 7. Simon Chandler (High Septon) and Emma D'Arcy (Rhaenyra Targaryen) in House of the Dragon season 3. In House of the Dragon, Aegon II Targaryen was anointed by the High Septon during the penultimate episode of season 1, "The Green Council." Emma D’Arcy as Rhaenyra Targaryen in House of the Dragon season 3 episode 7.