George Mallaby (Robert Gifford), John Waters (Mark Gifford), Ken Goodlet (Superintendant Cheadle), Delvene Delaney (Janine Talbort), Charles 'Bud' Tingwell (Dr Fairburn), Belinda Giblin (Margaret Gifford), Robert Hewett (Sergeant Robinson), Kevin Miles (Charlie Bricknall), Walter Pym (Stanley Lipton), Sheila Florance (Mavis Lipton), Reg Gorman (TV Reporter), Adrian Wright (Andrew Gifford), Jan Friedl (Policewoman), Vicki Raymond (Robbie's Mother), Elspeth Ballantyne (Welfare Officer), and Terry Gill (Ticket Collector).
