Gerald Thomas Director Harry H. Corbett Detective Sergeant Sidney Bung Actor Kenneth Williams Doctor Orlando Watt Actor Fenella Fielding Valeria Watt Actor Joan Sims Emily Bung Actor Charles Hawtrey Dan Dann Actor Jim Dale Albert Potter Actor Angela Douglas Doris Mann Actor Peter Butterworth Detective Constable Slobotham Actor Bernard Bresslaw Sockett Actor Jon Pertwee Doctor Fettle Actor Tom Clegg Oddbod Actor Billy Cornelius Oddbod Junior Actor Frank Thornton Mr. Jones Actor Denis Blake Rubbatiti Actor Talbot Rothwell Screenwriter Peter Rogers Producer Alan Hume Cinematographer Rod Nelson-Keys Film Editing Bert Davey Art Director Emma Selby-Walker Costume Design Eric Rogers Original Music