Olivier Marchal (born 14 November 1958) is a French actor, director, screenwriter, and a former policeman. In 2005, he was nominated for three César Awards (best director, best film and best writing) for his film 36 Quai des Orfèvres. He also created the popular French television police drama Braquo and wrote and directed some episodes in its first season (2009).
Source : Wikipedia