A discredited police inspector is given a second chance, in the form of a dangerous assignment. Chosen because of his uncanny resemblance to a Lt. Revere, the inspector impersonates him in order to penetrate a group of mercenaries with orders to assassinate its leader.
| Actor | Role |
|---|---|
 Maurice RonetRaoul Maury | Raoul Maury |
 Bruno CremerL'ex-sergent Donetti | L'ex-sergent Donetti |
 Mario AdorfL'ex-commandant Pierre Capra | L'ex-commandant Pierre Capra |
 Anny DupereyCora | Cora |
 Georges StaquetUn flic | Un flic |
 Michel BertayL'avocat | L'avocat |
 Marc MazzaBastien, le bras droit de Capra | Bastien, le bras droit de Capra |
 Jacques MonodLe député | Le député |
 Marina MalfattiIsabelle Maury | Isabelle Maury |
 Giacomo FuriaLe commissaire | Le commissaire |
 Renato RomanoInspecteur principal Gérard Louvel | Inspecteur principal Gérard Louvel |
 Jean LuisiUn flic | Un flic |
 Solange PradelChristine, la prostituée | Christine, la prostituée |
| JJean-Marie OryLe colonel | Le colonel |
 Guido Alberti(uncredited) | (uncredited) |
 Alfred BaillouUn joueur de billard (uncredited) | Un joueur de billard (uncredited) |
 Mario Pisu(uncredited) | (uncredited) |