Lino Ventura
Principal Inspector Marceau Leonetti
Marlène Jobert
Jeanne Dumas, the new auxiliary
Michel Constantin
Greg, the henchman
Paul Crauchet
Jacques Loring, Martin's neighbor
Alain Mottet
Frank Lambert, Leonetti's colleague and friend
Béatrice Arnac
Silvia
Guy Heron
Soramon
Albert Dagnant
Arnold
Monique Mélinand
Mrs Loring
Marcel Pérès
Mr Lenoir
Germaine Delbat
Mrs Lenoir
Hervé Sand
Gravel
Régine Lovi
Ms Viteau, the teacher
Philippe March
Roger Martin, the missing witness
Mathilde Ceccarelli
Perverse neighbor
Pippo Merisi
Scrap dealer
Raymond Meunier
Allister
Jacques Marchand
Maniac
Frédéric Santaya
Favre, Allister's teammate
Robert Favart
School's director
Guy Kerner
Doctor
Jean Sobieski
Aden
Pascal Gillot
Paul Beauvais
Aude Olivier
Carlo Nell
Luigi Cortese
Lucie Arnold
Gilette Barbier
Grocer (uncredited)
Luc Bartholomé
Jo Raison (uncredited)
Philippe Brizard
Taxi driver (uncredited)
Michel Charrel
Raisin (uncredited)
Roger Desmare
Shoemaker (uncredited)
Max Desrau
Thouin (uncredited)
Pierre Duncan
Agent at the police station (uncredited)
Martine Ferrière
Shoemaker's wife (uncredited)
Sébastien Floche
Caretaker of the building (uncredited)
Pierre Frag
Sandwich man (uncredited)
Jacques Galland
Director of P.J. (uncredited)
Stan Krol
Kropniak (uncredited)
Jacques Leroy
Inspector (uncredited)
Sylvain Lévignac
Gregg man (uncredited)
Roger Lumont
Storage man (uncredited)
Serge Marquand
Loudmouth (uncredited)
Colette Mars
First pharmacist (uncredited)
Bernard Musson
Pharmacist (uncredited)
Émile Riandreys
Bus traveler (uncredited)
Jacques Richard
Inspector (uncredited)
César Torres
Man with the grenade (uncredited)
Dominique Zardi
Pervert (uncredited)
Suzy Hannier
(uncredited)
Rita Maiden
(uncredited)