Trainee inspector Michel Clément / Commissioner Jules Clément
Roger Morzini, public enemy number 1
Marie-Anne Prossant, journalist
Divisional commissioner Vermillot
Dumeze, police director
Louis Prossant, press magnate and father of Marie-Anne
Inspector Zingo
Doctor Haquenbusch
Alphonse Rouchard, rapist of the little girl on the canal
Inspector Marcel Watrin
Inspector Gaffuri
Antique dealer
Marthe Clément, Michel's mother
Philou, friend of Michel
Merlino, photographer
Anthropometry Service Cop
Denise Morzini, mother of Roger
Gégé, bartender and partner of Michel at pétanque
Lawyer of the little girl victim of Rouchard
Zibet, student inspector
Goniometry specialist
TV presenter
English customer
Tramp