James Arnold Taylor

as Milo (voice)

Cree Summer

as Kida (voice)

John Mahoney

as Whitmore (voice)

Jacqueline Obradors

as Audrey / Nurse (voice)

Don Novello

as Vinny (voice)

Corey Burton

as Mole (voice)

Phil Morris

as Sweet (voice)

Florence Stanley

as Packard (voice)

Steven Barr

as Cookie (voice)

Frank Welker

as Obby / Mantell (voice)

Clancy Brown

as Volgud (voice)

Jean Gilpin

as Inger (voice)

Kai Rune Larsen

as Seaman / Gunnar (voice)

Bill Fagerbakke

as Sven (voice)

Thomas F. Wilson

as Carnaby (voice)

Jeff Bennett

as Sam McKeane (voice)

William Morgan Sheppard

as Erik Hellstrom (voice)