Incl. Joe James (Joe Slater), Irene Inescort (Marion Slater), Gerard Maguire (Steven Slater), Wendy Lingham (Sara Wainwright), Kenneth Tsang (Thao Kimalayo), Michael Long (Hugh Prentiss), Harold Hopkins (Malcolm), Elizabeth Hall (Beth), Kerry Dwyer (Robin), Slim DeGrey (Alexander Gurney), John Warwick (Frank Jamieson), Stewart Ginn (Supt. Ackland), Ken Goodlet (Inspector Graham), Redmond Phillips (Sir David Crawford), Alexander Cann (Henry Hoffman), Alistair Duncan (Ted Packard), Noel Ferrier (Governor General), Paul Karo (Charles East), Don Philps (Lloyd), Doreen Warburton (Australian Lady), Arnold Christopher (Pakistani), Michael Aitkin (Haler), Joseph Awe (Mr M'waso), David Lu (Japanese Delegate), Max Meldrum (TV Director), Jon Stephens (Communist Student), Peter Cruzado (Conference Delegate), Peter Berg (Christian Student).