Michel Simon
Professor Charles Buisson
Brigitte Auber
Gisèle, student of Buisson
Henri Génès
Lucien Mosca, boss of Ruban Bleu
?
Germaine Kerjean
Mrs. Rédéri
?
Anne Campion
The determined trafficker
Philippe Mareuil
Pierre-Dominique, aka 'Pépé'
Robert Lombard
Maurice, Buisson's assistant
?
Georges Galley
Patrice
?
Suzanne Norbert
Mrs. Buisson
Gaby Basset
Henriette, washroom attendant