Reparto
Michael Caine
Brad Crane
Katharine Ross
Capt. Helena Anderson
Richard Widmark
Gen. Thaddeus Slater
Richard Chamberlain
Dr. Hubbard
Olivia de Havilland
Maureen Schuester
Ben Johnson
Felix
Lee Grant
Anne MacGregor
José Ferrer
Dr. Andrews
Patty Duke
Rita
Slim Pickens
Jud Hawkins
Bradford Dillman
Maj. Baker
Fred MacMurray
Maj. Clarance Tuttle
Henry Fonda
Dr. Walter Krim
Cameron Mitchell
Gen. Thompson
Christian Juttner
Paul Durant
Morgan Paull
Dr. Newman
Alejandro Rey
Dr. Martinez
Don 'Red' Barry
Pete Harris
Elizabeth Rogers
Woman Scientist
Ernie F. Orsatti
Duty Officer
Patrick Culliton
Sheriff Morrison
John Furlong
Cameraman
Chris Petersen
Hal
Steven Marlo
Pilot #1
Arthur Space
Engineer
Chuck Hayward
Standby Engineer
Ken Clayton
Dr. Moore (uncredited)
Bob Harks
Townsman (uncredited)
Lawrence Moran
Colonel's Son (uncredited)
Monty O'Grady
Briefing Guest (uncredited)
John Otrin
Wild Lines (uncredited)
Leoda Richards
Briefing Guest (uncredited)
