Guest Stars Helen Shingler as Mme. Maigret Eric Thompson as Pierre George Betton as Louis John Salew as Dr. Paul Kathleen Saintsbury as Sister Dennis Edwards as Dr. Lanvin Ilona Ference as Desiree Brault John Robinson as Professor Etienne Gouin Peggy Thorpe-Bates as Madame Gouin Valerie White as Mle. Ollevier Annabel Maule as Dr, Decaux Totti Truman Taylor as Mme. Cornet