Michael J. Fox (Milo James Thatch)
James Garner (Commander Lyle T. Rourke)
Cree Summer (Princess Kidagakash "Kida")
Leonard Nimoy (Kashekim Nedakh "King of Atlantis")
Don Novello (Vincenzo "Vinny" Santorini)
Natalie Strom (Young Kida)
David Ogden Stiers (Fenton Q. Harcourt)
Jim Varney (Jebidiah Allardyce "Cookie" Farnsworth)
Florence Stanley (Wilhelmina Bertha Packard)
Phil Morris (Dr. Joshua Sweet)
Claudia Christian (Helga Sinclair)
Jacqueline Obradors (Audrey Ramirez)
John Mahoney (Preston B. Whitmore)
Corey Burton (Gaetan "Mole" Moliere)