Michael J. Fox

Milo James Thatch (voice)

Cree Summer

Princess 'Kida' Kidagakash (voice)

James Garner

Commander Lyle Tiberius Rourke (voice)

Claudia Christian

Helga Katrina Sinclair (voice)

Phil Morris

Dr. Joshua Strongbear Sweet (voice)

Leonard Nimoy

King Kashekim Nedakh (voice)

John Mahoney

Preston B. Whitmore (voice)

Corey Burton

Gaetan 'The Mole' Moliere (voice)

Don Novello

Vincenzo 'Vinny' Santorini (voice)

Jacqueline Obradors

Audrey Rocio Ramirez (voice)

Jim Varney

Jebidiah Allardyce 'Cookie' Farnsworth (voice)

Florence Stanley

Wilhelmina Bertha Packard (voice)

David Ogden Stiers

Fenton Q. Harcourt (voice)

Jim Cummings

Additional Voices (voice)