Guest Stars Robert Duvall as Adam Ballard Donald Harron as Ray Harris James Shigeta as AIO Captain Newa Co Starring Ivan Dixon as Sgt. James Conover Steve Ihnat as Lt. Philip J. Minns James Frawley as Robert Renaldo Dee Pollock as Francis Hadley, P.F.C. Kim Hector as Johnny Subiron Ted de Corsia as Randolph E. Branch Dabbs Greer as E.F. Larkin Leon Askin as Shop Superintendant William Wintersole as Prof. Andrew Whitsett Robert J. Nelson as The Surgeon Robert Cinder as Jessup Simon Prescott as The Guard Linda Hutchings as The Nurse Uncredited Yoneo Iguchi as Northern Guerilla