Richard Hatch (Sgt. Chet Costa), Donald Pleasence (Col. B. Abrams), James McKenzie (Phil), Milene Thy-Sanh (Mei Ling), Vassili Karis (Paco), Mike Monty (Captain Marvin), Anthony Sawyer (Smiley), David Light (), Larry Melwin (), Paul Persse (), Robert J. Collins (), Dan Pedersen (), Donald Crob (), Max Laurel ()