L'Alpagueur is a free-lance spy from the French secret agency. He's put on the investigation about L'epervier, a serial-killer who employs young boys to help him robbing banks before killing them.
Roger Pilard, aka l'Alpagueur
Jean-Paul Belmondo
Gilbert, aka l'Epervier
Bruno Cremer
Spitzer
Jean NĂ©groni
Costa Valdez
Patrick Fierry
Salicetti
Jean-Pierre Jorris
Doumecq
Victor Garrivier
Granier
Claude Brosset
Director of cabinet
Marcel Imhoff
Road driver 'Gros Bras'
Maurice Auzel
First flight attendant
Muriel Belmondo
Spanish mafioso
Roger Benamou
Second rifle
Jean-Luc Boutté
First bank employee
Patrice Chapelain-Midy
Second flight attendant
MichĂšle Delacroix
Sicilian mafioso
Jacques Destoop
Prison director
Jacques Dhéry
Jeweler
Max Doria
Guardian of the prison door
François Germain
Marcel, the truker
Claude Guerry
Commissioner Gavarni
Francis Huger
First rifle
Jack Jourdain
Hostess
Suzan Kent
Poisoned prisoner
Charly Koubesserian
Third rifle
Marc Lamole
the young biker
Mitia Lanzmann
4th rifle
Dave Larsen
Second bank employee
Jean-Claude Magret
Mediterranean mafioso
Henri Viscogliosi
Henchman (uncredited)
Michel Berreur
South American mafioso (uncredited)
René Chateau