The film, set in 1912, is about the exploits of France's first motorized police brigade.
Clovis Cornillac
as Commissioner Paul Valentin
Diane Kruger
as Princess Constance Radetsky
Édouard Baer
as Inspector Pujol
Olivier Gourmet
as Inspector Marcel 'Le Colosse' Terrasson
Thierry Frémont
as Piotr
Jacques Gamblin
as Jules Bonnot
Stefano Accorsi
as Trainee inspector Achille Bianchi
Léa Drucker
as Léa
Philippe Duquesne
as Casimir Cagne
Didier Flamand
as Prefect of police
Gérard Jugnot
as Chief commissioner Faivre
Agnès Soral
as Mademoiselle Amélie
