Corin Redgrave (Dr Edward Trenbow), Judy Morris (Deborah Trenbow), Günter Meisner (Karl Schneider), Arthur Dignam (Peter Avante), Patricia Leehy (Marguerite), Joan Winchester (Deborah's Mother), Brian James (Deborah's Father), Reg Gillam (Trenbow Sr), Betty Lucas (Mrs Trenbow), Neil Fitzpatrick (Lance Backhouse), Martin Vaughan (Dick Turner), John Chance (ABC Announcer), John Armstrong (Barman), Noel Brady (Rodney, aged 20), Peter Collingwood (Judge), Peter Cummins (Steele), Betty Dyson (Mrs Riley), Stuart Finch (Syme), David Goddard (Minister), Ken Goodlet (New Guard Major), Reg Gorman (Orderly), Martin Harris (Hook), Judy Lynne (Woman Officer), Max Meldrum (Rev. Lyle Smart), John Morris (Superintendent), Rob Steele (Vomiting Patient), Melissa Jaffer (Matron), Graham Corry (Asylum Director), Robert Quilter (Barrister), David Bradley (Barrister for Trenbow), Terence Peck (Student).