Jillian Nguyen as Arkie (voice)

Remy Hii as Bunniguru (voice)

Sam Neill as Dr. Maybee (voice)

Rob Collins as Blister (voice)

Tim Minchin as Chihoohoo (voice)

Anna Torv as The Keeper (voice)

Liv Hewson as Bugeye (voice)

Deborah Mailman as Treedweller (voice)

Dylan Alcott as Rebel King (voice)

Mark Coles Smith as River Bandit / Swamp Dog (voice)

Kate Murphy as Egg / Computer Voice (voice)

Ricard Cussó as Narwhal (voice)