Maclean Rogers Director, Writer Dinah Sheridan Shirley Yorke Actor John Robinson Dr Bruce Napier Actor Derek Farr Gerald Ryton Actor Margaretta Scott Alison Gwynne Actor Barbara Couper Muriel Peach Actor Beatrix Thomson Lady Camber Actor Ian McLean Dr Harris Actor Jack Raine Stansfield Yorke Actor Hugh Pryse The Coroner Actor Lesley Osmond Jennifer Ware Actor Valentine Dyall Edward Holt Actor Eleanor Summerfield Doris Actor Bruce Seton Captain Sharp Actor Neville Brook Sir Bernard Slufter Actor Olive Kirby Irene Actor Charles Hawtrey Major Markham Actor Shirley Quentin Night Sister Actor Vincent Holman Bates Actor A.R. Rawlinson Writer, Associate Producer Kathleen Butler Writer Ernest G. Roy Producer George Melachrino Original Music Geoffrey Faithfull Cinematographer Ted Richards Film Editor