John Guillermin Director Charlton Heston Capt. Henry "Hank" O'Hara Actor Yvette Mimieux Angela Thacher Actor James Brolin Jerome K. Weber Actor Claude Akins Sgt. Ben Puzo Actor Jeanne Crain Mrs. Clara Shaw Actor Susan Dey Elly Brewster Actor Rosey Grier Gary Brown Actor Mariette Hartley Harriet Stevens Actor Walter Pidgeon Sen. Arne Lindner Actor Ken Swofford John Bimonte Actor Leslie Uggams Lovejoy Wells Actor Ross Elliott Harold Shaw Actor Nicholas Hammond Peter Lindner Actor Mike Henry Sam Allen Actor Walter Seltzer Producer Stanley R. Greenberg Screenwriter