Eddie Albert
Adm. Wiley Sloan
John Carradine
Ronald Bentley
Alex Cord
Dr. Sam Marlowe
Robert Forster
Comdr. Jeff Selkirk
Frank Gorshin
Dan Wesker
Mark Harmon
Peter Cabot
Christopher Lee
John McKenzie
Tom Dunstan
Agra Worker
Bruce Heighley
Technician
Robert Paul Jordan
(voice)
John Berwick
Crewman
Laurence Haddon
Cpt. Volero (uncredited)
Julie Bennett
Sylvia King
Michael White
PC18 Officer
