Roald Dahl Creator, Self Andrew Ray Roger Carson Actor Joanna Pettet Betsy Actor Celia Gregory Actor Paul Spurrier David Actor Forbes Collins Police Sergeant Actor Bill La Voie Removal Man Actor Elaine Paige Suzie Actor Margery Mason Mrs Saunders Actor Rachel Kempson Mrs Mason Actor Martin Benson Vasco Actor Douglas Lambert Mr Harrington Actor Brian Osborne Police Sergeant Actor Peter Copley Man at Railway Station Actor Robert Casper Wheatley Actor Judi Bowker Ann Actor Kevin Brennan Mr. Grimshaw Actor Ian Martin Dr Ivey Actor Penelope Gillette Mrs. Runion Actor Tad Horino Coroner Actor Ron Grainer Music John Jacobs Director Bert Salzman Director, Writer John Peyser Director John Gorrie Director Denis Cannan Writer Pat Hoddinott Writer Ruth Rendell Writer Alan Gibson Director Jack Ritchie Writer Ray Danton Director Donald Honig Writer Robin Chapman Writer John Rosenberg Producer Michael Minard Music Ronald Harwood Writer John Woolf Executive Producer Dean Cundy Cinematographer