Act One: Including Simon Burke (Constable Webber), John Hargreaves (Constable Borland), Bill Hunter (Sergeant O'Rourke), Isabelle Anderson (Constable Callahan), Dennis Miller (Sergeant Draffin), Deryck Barnes (Inspector Clark), David Williams (Sergeant Gardiner), Ray Marshall (Sergeant Wheeler), Don Reid (Assistant Commissioner), Colin Hughes (Inspector Brown), Michael Meagher (Constable Yates), Phillip Ross (Boarding-House Manager), Joy Hruby (Mrs Simpson), Stanley Walsh (Jaguar Driver), Kati Edwards (Mrs Coleman), and Gary Waddell (Jimmy).
Act Two: Including Dennis Miller (Det. Sgt. Draffin), Tim Robertson (Det. Sgt. Miles), Tony Barry ('Nipper' Jackson), Don Reid (Assistant Commissioner), Peter Gwynne (Inspector Peters), Brian McDermott (Police Minister), Peter Hehir (Det. Const. Blake), John Sheerin (Det. Const. Wiseman), Malcolm Keith (Det. Sgt. Simms), Warwick Moss (Det. Sgt. Turner), Jeff Truman (Det. Sgt. Matthews), Judi Farr (Mary Miles), Martin Harris (Kerr), Robert Noble (Lederman), Bill McCluskey (Jeff Maynard), and Slim de Grey (Paul Stewman).
Act Three: Including Nick Tate (Attorney-General), Richard Meikle (Premier Cooper), John Meilon (Barnes), Brian McDermott (Carpenter), Max Cullen (Roach), Kris McQuade (Kate Hardman), Susan Stenmark (Jan), Diane Craig (Meredith), Frank Wilson (Sir John Ritchie), Russell Newman (Palmer), (Don Reid as Assistant Commissioner), Antoinette Byron (Prostitute), Reg Gillam (Church), Colin Taylor (Fletcher), Tim Robertson (Sgt. Myles), and Frank Garfield (Ogden).
