 Lino VenturaAbel Davos | Abel Davos |
 Jean-Paul BelmondoÉric Stark | Éric Stark |
 Sandra MiloLiliane | Liliane |
 Marcel DalioArthur Gibelin | Arthur Gibelin |
 Michel ArdanHenri Vintran, aka 'Riton' | Henri Vintran, aka 'Riton' |
 Simone DesmaisonThérèse Davos | Thérèse Davos |
 Michèle MéritzSophie Fargier | Sophie Fargier |
 Stan KrolRaymond Naldi | Raymond Naldi |
 Evelyne KerGibelin's daughter | Gibelin's daughter |
 Betty SchneiderLittle maid | Little maid |
 France AsselinDenise Vintran | Denise Vintran |
 Jean-Pierre ZolaBoss of the detective agency | Boss of the detective agency |
 Sylvain LévignacAgency detective | Agency detective |
 Jeanne PérezJacqueline Chapuis | Jacqueline Chapuis |
 René GéninMr. Chapuis | Mr. Chapuis |
 Charles BlavetteMr. Bénazet | Mr. Bénazet |
 Philippe MarchJean Martin | Jean Martin |
| CCorrado GuarducciFerucci | Ferucci |
 Robert DesnouxPierrot Davos | Pierrot Davos |
| TThierry LavoyeDaniel Davos | Daniel Davos |
 Claude CervalRaoul Fargier | Raoul Fargier |
 Jacques DacqmineCommissioner Blot | Commissioner Blot |
 Max AmylStage manager (uncredited) | Stage manager (uncredited) |
 Marcel BernierInspector (uncredited) | Inspector (uncredited) |
 Jean CombalPoliceman of Nice (uncredited) | Policeman of Nice (uncredited) |
| AAlbert DaumergueRiton man (uncredited) | Riton man (uncredited) |
 Lucien DesagneauxBilliard player (uncredited) | Billiard player (uncredited) |
 Bernard DhéranBlastone (uncredited) | Blastone (uncredited) |
 Marcel GassoukMan at the Nice police station (uncredited) | Man at the Nice police station (uncredited) |
 Guy HenryInspector (uncredited) | Inspector (uncredited) |
