Jamie Croft

Napoleon (voice)

Philip Quast

Birdo (voice)

Susan Lyons

Napoleon's Mom (voice)

Blythe Danner

Mother Dingo (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)