 Jean-Pierre MockyFrançois Gérane | François Gérane |
 Pierre BrasseurDr. Varmont | Dr. Varmont |
 Paul MeurisseDr. Emery | Dr. Emery |
 Charles AznavourHeurtevent | Heurtevent |
 Anouk AiméeStéphanie | Stéphanie |
 Jean GallandMaître Gérane | Maître Gérane |
 Jean OzenneCount Elzéar de Chambrelle | Count Elzéar de Chambrelle |
 Thomy BourdelleColonel Donnadieu | Colonel Donnadieu |
 Rudy LenoirThe hidden man | The hidden man |
 Roger LegrisDecauville, the driver | Decauville, the driver |
| HHenri San JuanThe pool owner | The pool owner |
 Édith ScobThe singing mad | The singing mad |
 Max MontavonInternee in the refectory | Internee in the refectory |
 René AliéNot listed | Not listed |
 Luc AndrieuxNurse | Nurse |
| DDoudou BabetThe black man | The black man |
| CClaude BadolleNot listed | Not listed |
| CClaude CastaingNot listed | Not listed |
| JJean HenryNot listed | Not listed |
| PPierre KoplitchevNot listed | Not listed |
| JJean LabarrèreNot listed | Not listed |
 Jacques MancierMan with a gun | Man with a gun |
 Claude MansardNot listed | Not listed |
 Raoul MarcoNot listed | Not listed |
 Diego MassonNot listed | Not listed |
 Pierre MiratKeeper | Keeper |
 Véronique NordeyNot listed | Not listed |
 Henri PoirierPriest | Priest |
| AAlexandre RandallNot listed | Not listed |
 Jean RougerieNot listed | Not listed |
