Guest Stars Helen Shingler as Mme. Maigret Michael Alexander as Sergeant Patsy Smart as Mlle. Rinquet Rowena Torrance as Helene Terence Soall as Post Office Clerk Nicolette Bernard as Olga Barbara Cavan as Mother Superior Jean Theobald as Lucille Gordon Gostelow as Georget Janet Barrow as Babette Peter Elliott as Inspector Mansuy Gladys Boot as Madame Bellamy Sian Pryce as Sister Aurelle John Ruddock as Duffleux Freda Bamford as Sister Aldegonde Meadows White as Dr. Rougemont Mary Kenton as Popine Perlita Neilson as Sister Marie des Anges Nanette Newman as Odette Griffith Jones as Dr. Bellamy Bernard Kay as Francois