The nine new cast members were announced via a video-link during a packed panel at Comic Con, in San Diego.
Those joining the show are:
Alexander Siddig as Doran Martell (Oberyn’s older brother)
Toby Sebastian as Trystane Martell (Oberyn’s eldest son).
Nell Tiger Free as Myrcella Baratheon
DeObia Oparei as Areo Hotah
Enzo Cilenti as Yezzan
Jessica Henwick as Nymeria Sand
Rosabell Laurenti Sellers as Tyene Sand
Keisha Castle-Hughes as Obara Sand
Jonathan Pryce as High Sparrow
Over 6,000 people attended the Game of Thrones panel in the famous Hall H.
Existing cast on the panel included Kit Harrington (Jon Snow), Gwedoline Christie (Brienne of Tarth) and Maisie Williams (Arya Stark).