Jacques Brel as Investigating Judge Bernard Level

Catherine Rouvel as Danièle Lebegue

Paola Pitagora as Laura

Charles Denner as Graziani

François Cadet as Rabut

Roland Lesaffre as Saugeat

Françoise Giret as Geneviève Saugeat

Didier Haudepin as François

Harry-Max as Moulard

Pierre Maguelon as Guardian

Alain Nobis as President

Jean-Roger Caussimon as Commissioner Lagache

Serge Sauvion as Benetti

Boby Lapointe as Louis Casso

Michael Lonsdale as Inspector Bertrand

Henri Nassiet as President of the Court

Luc Ponette as Maître Rivette

Marius Laurey as Véricel

Lucien Barjon as Mauvoisins

Luc Merenda as Marco (uncredited)

Jean Franval as Sabatier (uncredited)