Kadro (21)
Stuart WhitmanAdm. Michael Matthews
Robert WagnerBrett
Rosemary ForsythLia Holmes
Robert ColbertCommander Woody Patterson
Burr DeBenningAguila
Susana MirandaElena
Richard BasehartThe President
Joseph CottenDr. Ziegler
Whit BissellProf. Holmes
James DarrenDr. Talty
Paul StewartBarton
Sugar Ray RobinsonCapt. Hunter
Charles DierkopQuinn
Larry PennellBill Holmes
William BryantCapt. Lunderson
Robert DowdellYoung Officer
Sheila AllenBlonde Woman
Tom DrakeGen. Putnam
Paul BradleyScientist (uncredited)Brent DunsfordTechnician (uncredited)
George HolmesScientist (uncredited)