Guest Stars James Grout as Chief Superintendent Strange Richard Hampton as Coroner Thomas Craig as Desk Sergeant Samantha Bond as Helen Marriat Adrian Dunbar as John Marriat Joanna David as Susan Fallon Dominic Keating as Murray Stone David Haig as Peter Rhodes Lesley Vickerage as WPC Martyn Waites as Duty Constable James Walker as Henry Fallon Richard Pasco as William Bryce-Morgan Christopher Owen as Solicitor James Grant as McGregor Susan Jane Tanner as Nurse Rogers Michael Tomlinson as Constable Tony Mathews as Pathologist Alexander John as Court Official Roger Frost as Photographer Greer Gaffney as Henrietta Fallon Vincent Pickering as Telephone Exchange Man Brendan O'Hea as Telecom Engineer Uncredited Colin Dexter as Man at Reception After Schubert Concert