休·马洛
饰 Dr. Russell A. Marvin
Joan Taylor
饰 Carol Marvin
Donald Curtis
饰 Maj. Huglin
Morris Ankrum
饰 Brig. Gen. John Hanley
Thomas Browne Henry
饰 Vice Adm. Enright
Grandon Rhodes
饰 Gen. Edmunds
John Zaremba
饰 Prof. Kanter
Frank Wilcox
饰 Alfred Cassidy
Sydney Mason
饰 Frank the garage man
拉里·J·布莱克
饰 Motorcycle cop
Bert Stevens
饰 Air Intelligence Command Officer
Forbes Murray
饰 Military Officer at Experiment
Arthur Tovey
饰 Officer/Civilian at Military Conference
Alan Wells
饰 Major Kimberly
Nicky Blair
饰 Military Officer at Experiment (uncredited)
Jimmy Cross
饰 Military Messenger (uncredited)
Jack Deery
饰 Military Officer (uncredited)
Charles Evans
饰 Dr. Alberts (uncredited)
Raoul Freeman
饰 Military Official (uncredited)
