Guest Stars Helen Shingler as Mme. Maigret Neville Jason as Lapointe Nan Marriott-Watson as Concierge Marne Maitland as Albert Allan McClelland as Armand Henry Oscar as Inspector Lognon David Lawton as Mariani Stephanie Beaumont as Jeanine Anne Blake as Mme. Canut Patsy Smart as Mlle. Rinquet Joanna Royce as Louise Gordon Sterne as Insp. Clark Eileen Way as Irene Vanda Godsell as Mme. Laboine Olga Lindo as Mme. Cremieux
