Crew
Fred F. Sears
Director
George Worthing Yates
Screenplay
BG
Bernard Gordon
Screenplay
Charles H. Schneer
Producer
FJ
Fred Jackman Jr.
Director of Photography
Cast
Hugh Marlowe
Dr. Russell A. Marvin
Joan Taylor
Carol Marvin
Donald Curtis
Maj. Huglin
Morris Ankrum
Brig. Gen. John Hanley
Thomas Browne Henry
Vice Adm. Enright
Grandon Rhodes
Gen. Edmunds
John Zaremba
Prof. Kanter
Paul Frees
Alien (voice)
Frank Wilcox
Alfred Cassidy
SM
Sydney Mason
Frank the garage man
Larry J. Blake
Motorcycle cop
BS
Bert Stevens
Air Intelligence Command Officer
