Jean-Paul Belmondo
Commissioner Jean Letellier
Charles Denner
Inspector Moissac
Adalberto Maria Merli
Pierre Valdeck / Minos
Rosy Varte
Germaine Doizon
Jean Martin
Divisional commissioner Sabin
Jean-François Balmer
Julien Dallas, student
Catherine Morin
Hélène Grammont
Roland Dubillard
Psychologist
Henry Djanik
Police inspector
Germana Carnacina
Pamela Sweet
Giovanni Cianfriglia
Marcucci
Philippe Brigaud
Neighborhood commissioner
Roger Riffard
Watchman Eugène Merclin
Jean-Louis Le Goff
Sub-prefect
Maurice Vallier
Guest who goes to the wrong door
Henri-Jacques Huet
Julio Cortes, Norah's lover
Jacques Rispal
'Cacahuète'
Jean-Louis Fortuit
Police inspector
Gilberte Géniat
Germaine Doizon's concierge
Michel Berreur
Armed robber (uncredited)
Pierre Douglas
Radio journalist (uncredited)
André Valardy
Radio reporter (uncredited)
Albert Delpy
Sound engineer (uncredited)
Jacques Mathou
Tenant disturbed by Letellier (uncredited)
