Guest Stars Walter Burke as Recruiter Neil Hamilton as General Hilary J. Clarke Dee Hartford as Mrs. Clarke Richard Dawson as Oliver Fair John Graham as Supervisor William Douglas as Henry Castle Tony Mordente as Genero Planetta Len Lesser as Worker / GIA Agent Don Gordon as Luis D. Spain George Macready as Gov. Lawrence K. Hillmond Chris Warfield as Johnny Uncredited Vic Perrin voices GIA Chief Bob Johnson voices Invisible
