Trailer
Cast
Stephen Boyd
Grant
Arthur Kennedy
Dr. Duval
Jean Del Val
Jan Benes
Ken Scott
Secret Service
James Brolin
Technician
James Doohan
Dr. Sawyer (Hypothermia technician) (uncredited)
Kenneth MacDonald
Henry - Heart Monitoring (uncredited)
Donald Pleasence
Dr. Michaels
Barry Coe
Communications Aide
Brendon Boone
Military Policeman (uncredited)
Edmond O'Brien
General Carter
Arthur O'Connell
Col. Donald Reid
William Redfield
Capt. Bill Owens
Shelby Grant
Nurse
Christopher Riordan
Young Scientist (uncredited)
Raquel Welch
Cora