Guest Stars James Grout as Chief Superintendent Strange Amanda Hillwood as Doctor Grayling Russell Beatie Edney as Deborah Burns Gertan Klauber as German Man Barry Foster as Sir Alexander Reece Pauline Munro as Dentist Mark Tandy as Mr. Collins Sian Thomas as Carol Sharp Albert Welling as Chris Stoneley Nathan Lewis as Young Man Nikki Brooks as Young Woman Jackie Buchanan as German Woman Jill Johnson as Mrs. Burns Philip Bloomfield as Sam Lana Morris as Miss Tree Laura Sadler as Sabena Michael Aldridge as Arthur Drysdale Michael Percival as Landlord Susannah Hitching as Girl on Boat Kevin McMonagle as Geoff Tenniel Evans as Dr. David Kerridge Bert Parnaby as Ben Uncredited Colin Dexter as Man walking along canal bank in opening scene
