Cast
Michael Caine
Brad Crane
Katharine Ross
Helena
Richard Widmark
General Slater
Richard Chamberlain
Dr. Hubbard
Olivia de Havilland
Maureen
Ben Johnson
Felix
Lee Grant
Anne MacGregor
José Ferrer
Dr. Andrews
Patty Duke
Rita
Slim Pickens
Jud Hawkins
Bradford Dillman
Major Baker
Fred MacMurray
Clarence
Henry Fonda
Dr. Krim
Cameron Mitchell
General Thompson
Christian Juttner
Paul Durant
Morgan Paull
Dr. Newman
Alejandro Rey
Dr. Martinez
Don 'Red' Barry
Pete Harris
Elizabeth Rogers
Woman Scientist
Doria Cook-Nelson
Mrs. Durant
