Steve Karnes
Prof. James Bickford
Jean Trevethan
John
Dr. C. A. Morris, the village doctor
Senior Admiral, at the Admiralty
Dr. Sampson, the paleontologist
Mini Submarine Officer
Tom Trevethan
Photo Lab Aide
Naval Commader, at the "Valkyrie" wreck (uncredited)
Dialogue Scientist at Conference (bit)
Story
Screenplay
Director
Story
Director of Photography
Editor
Producer
Producer
Original Music Composer
Art Direction
Production Design
Sound Editor
