Guest Stars
Donna Kimball
voices Aughra
Simon Pegg
voices The Chamberlain
Caitríona Balfe
voices Tavra
Gugu Mbatha-Raw
voices Seladon
Mark Hamill
voices The Scientist
Jason Isaacs
voices The Emperor
Benedict Wong
voices The General
Victor Yerrid
voices Hup
Neil Sterenberg
voices The Scroll Keeper
Awkwafina
voices The Collector
Kevin Clash
voices Gruenak #1
Harvey Fierstein
voices The Gourmand
Lena Headey
voices Maudra Fara
Ólafur Darri Ólafsson
voices The Archer
Neil Sterenberg
voices Gruenak #2
Ralph Ineson
voices The Hunter
Alice Dinnean
voices The Ornamentalist
Andy Samberg
voices The Heretic
Bill Hader
voices UrGoh the Wanderer
James Dreyfus
voices Lath'N
Louise Gold
voices Maudra Argot
Charlie Condou
voices Mitjan
Beccy Henderson
voices Bobb'N