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