Cast
Skip Homeier
Lyman George
Paul Lukas
Dr. Nagy
Davis Roberts
Scientist
Broderick Crawford
Gen. Lewis Meyers
James Whitmore
Overman
Adolph Caesar
Clarence Opano
Gene LeBell
Karate Instructor
Sam Elliott
Bryant
Bill Zuckert
Army Colonel
Garry Walberg
Submarine Captain
Bill Quinn
Marine Colonel
Darren McGavin
Jacob Gallery
Mako
Yuro
Byron Morrow
Defense Secretary