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