Guest Stars Donna Kimball voices Aughra Jason Isaacs voices The Emperor Keegan-Michael Key voices The Ritual Master Benedict Wong voices The General 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 Hannah John-Kamen voices Naia Shazad Latif voices Kylan Ralph Ineson voices The Hunter Helena Bonham Carter voices All-Maudra Damian Farrell voices Lore