Jamie Croft
Napoleon (voice)

Philip Quast
Birdo (voice)

Susan Lyons
Napoleon's Mom (voice)

Blythe Danner
Mother Dingo (voice)

Catherine Lambert
Lorikeet / Rabbit (voice)

Anne-Louise Lambert
Spider / Earless Wallaby / Desert Mouse (voice)

Frank Whitten
Koala (voice)

David Argue
Galah / Frill-necked Lizard

Steven Vidler
Snake / Galah / Desert Mouse / Turtle (voice)

Barry Humphries
Kangaroo (voice)

Reg E. Cathey
Frog (voice)

Fiona Press
Other Wallaby / Galah (voice)

Casey Siemaszko
Conan (voice)

Geoffrey Bateman
Cat (voice)

Bob Glouberman
Desert Mice / Lone Lorikeet / Wallaby #2 / Wombat (voice)

Olivia Hack
Nancy (voice)

Carol Kane
Spider (voice)

Maurice LaMarche
Frill-necked Lizard / Snake / Turtle (voice)

Joan Rivers
Mother Penguin (voice)

Wallace Shawn
Echidna (voice)

David Ogden Stiers
Koala / Owl (voice)

Stuart Pankin
Perenti Lizard / Father Penguin