Guest Stars Donna Kimball voices Aughra Jason Isaacs voices The Emperor Benedict Wong voices The General Keegan-Michael Key voices The Ritual Master Gugu Mbatha-Raw as Seladon Caitríona Balfe voices Tavra Simon Pegg voices The Chamberlain Victor Yerrid voices Hup Harris Dickinson voices Gurjin Warrick Brownlow-Pike voices Red-Haired Paladin Ralph Ineson voices The Hunter Shazad Latif voices Kylan Hannah John-Kamen voices Naia Helena Bonham Carter voices All-Maudra Damian Farrell voices Lore