Guest Stars Barbara Young as Rita Bernard Horsfall as Professor Donn Hu Pryce as Specialist Jon Pertwee as Luis Silverado Gordon Warnecke as Doctor Harry Cindy O'Callaghan as Patsy Choy-Ling Man as Minnie Paddie O'Neil as Marcella Emily Hartley as Emily Ozzie Yue as Connie John Bluthal as Tonu Jenny Jay as Juney Susie Ann Watkins as Dawn Sheila Bernette as Mrs. Hall
