Calificación
Reparto

Don Murray
Dr. Alex Lauder

Ray Milland
Prof. Samuel Hale Constable

Gene Tierney
Lenore Constable

Barbara Dana
Tina Cryder

Ed Asner
Saul Wiener

Pamelyn Ferdin
Mary Constable

William Beckley
Arnold Watson Bessmer

Ivor Barry
Dr. Paul Cryder

George Macready
Dr. Frank Ferguson

John Carradine
Mr. Bosch

Virginia Christine
Helga

Cecile Ozorio
Devi Bessmer

Frank Maxwell
General Augstadt

Hal Frederick
C.I.C. Technician

Bill Hickman
Enemy Agent