As her world is shrouded in darkness, a young girl must overcome her fears and travel to a mysterious city of light, save her father from a dangerous scientist and prevent the destruction of her planet.
| Actor | Role |
|---|---|
 Jillian NguyenArkie (voice) | Arkie (voice) |
 Remy HiiBunniguru (voice) | Bunniguru (voice) |
 Sam NeillDr. Maybee (voice) | Dr. Maybee (voice) |
 Rob CollinsBlister (voice) | Blister (voice) |
 Tim MinchinChihoohoo (voice) | Chihoohoo (voice) |
 Anna TorvThe Keeper (voice) | The Keeper (voice) |
 Liv HewsonBugeye (voice) | Bugeye (voice) |
 Deborah MailmanTreedweller (voice) | Treedweller (voice) |
| DDylan AlcottRebel King (voice) | Rebel King (voice) |
 Mark Coles SmithRiver Bandit / Swamp Dog (voice) | River Bandit / Swamp Dog (voice) |
 Kate MurphyEgg / Computer Voice (voice) | Egg / Computer Voice (voice) |
 Ricard CussóNarwhal (voice) | Narwhal (voice) |