Guest Stars
Donna Kimball
voices Aughra
Mark Hamill
voices The Scientist
Gugu Mbatha-Raw
voices Seladon
Simon Pegg
voices The Chamberlain
Benedict Wong
voices The General
Caitríona Balfe
voices Tavra
Victor Yerrid
voices Hup
Harris Dickinson
voices Gurjin
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
Toby Jones
voices Librarian
Ólafur Darri Ólafsson
voices The Archer
Neil Sterenberg
voices Gruenak #2
Hannah John-Kamen
voices Naia
Shazad Latif
voices Kylan
Mark Strong
voices Ordon
Ralph Ineson
voices The Hunter
Alice Dinnean
voices The Ornamentalist
Bill Hader
voices UrGoh the Wanderer
Andy Samberg
voices The Heretic
Louise Gold
voices Maudra Argot
James Dreyfus
voices Lath'N
Charlie Condou
voices Mitjan
