| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alain Poiré | Crew | Production | Producer |
 Albert Jurgenson | Crew | Editing | Editor |
Alex Archambault | Crew | Costume & Make-Up | Makeup Department Head, Hair Department Head |
André Domage | Crew | Camera | Camera Operator |
Colette Crochot | Crew | Crew | Script |
 Danièle Thompson | Crew | Writing | Writer |
 Georges Delerue | Crew | Sound | Original Music Composer |
 Gérard Oury | Crew | Directing | Director, Writer |
Jean André | Crew | Art | Production Design |
Jean-Charles Meunier | Crew | Visual Effects | Animation |
 Jean-Marie Poiré | Crew | Directing | Assistant Director |
Laurence Leininger | Crew | Editing | Editor |
Louis Hochet | Crew | Sound | Sound Engineer |
Marc Desages | Crew | Art | Assistant Decorator |
 Marcel Jullian | Crew | Writing | Writer |
Monique Archambault | Crew | Costume & Make-Up | Makeup Department Head, Hair Department Head |
Paul Joly | Crew | Production | Executive Producer |
Robert Christidès | Crew | Art | Props |
Tanine Autré | Crew | Costume & Make-Up | Costume Mistress |
Théobald Meurisse | Crew | Art | Assistant Decorator |
Wladimir Ivanov | Crew | Camera | Director of Photography |
Jacques Pignier | Crew | Production | General Manager |
Michel Deruelle | Crew | Costume & Make-Up | Makeup Artist |
Marc Monnet | Crew | Directing | Assistant Director |
Colette Leloup | Crew | Sound | Sound Editor |
Marcel Corvaisier | Crew | Sound | Sound Assistant |
Dominique Amy | Crew | Sound | Sound Editor |
François Nadal | Crew | Directing | Assistant Director |
Guy Azzi | Crew | Production | Administration |
Paulette Andrieux | Crew | Editing | Editorial Manager |
Vartan Karakeusian | Crew | Sound | Sound Assistant |
Pierre Durin | Crew | Crew | Special Effects |
Bernard Mongourdin | Crew | Directing | Assistant Director |
Philippe Lejour | Crew | Crew | Dialogue Coach |
Georges Gillet | Crew | Production | Administration |
Robert André | Crew | Art | Assistant Decorator |
Roger Tellier | Crew | Camera | Assistant Camera |
Arch Taylor | Cast | Actor | Un membre de la mafia italienne |
 Bourvil | Cast | Actor | Anatole |
César Torres | Cast | Actor | (non crédité) |
 David Niven | Cast | Actor | Le Colonnel Carol Matthews, dit « Le Cerveau » |
 Dominique Zardi | Cast | Actor | Un gardien de prison de Poissy |
 Eli Wallach | Cast | Actor | Frankie Scannapieco, parrain de la mafia italienne |
 Fernand Guiot | Cast | Actor | Inspector Mazurel, assistant to the commissioner |
 Gérard Hernandez | Cast | Actor | L'agent de police au Le Havre (non crédité) |
 Henri Attal | Cast | Actor | Un membre de la bande du Colonnel |
 Henri Génès | Cast | Actor | Le gardien chef de la prison de Poissy |
 Jacques Balutin | Cast | Actor | L'inspecteur Pochet |
 Jacques Ciron | Cast | Actor | L'inspecteur Dubœuf |
 Jean-Paul Belmondo | Cast | Actor | Arthur Lespinasse |
 Mario David | Cast | Actor | Jean-François, antiquaire au Havre |
 Max Montavon | Cast | Actor | L'antiquaire au Havre, partenaire de Jean-François |
 Micha Bayard | Cast | Actress | L'épouse d'André (non créditée) |
 Patrick Préjean | Cast | Actor | Le Sergent Belge du détachement du waggon blindé |
 Paul Mercey | Cast | Actor | André, le propriétaire innondé du 5ème étage |
 Pierre Tornade | Cast | Actor | Un soldat Belge du détachement du waggon blindé (non crédité) |
 Raoul Delfosse | Cast | Actor | Militaire Belge du détachement du waggon blindé |
 Raymond Gérôme | Cast | Actor | Le commissaire |
 Robert Dalban | Cast | Actor | Militaire Belge convoyant le waggon blindé (avec un rhume) |
 Roger Lumont | Cast | Actor | Le patron de la boutique |
 Silvia Monti | Cast | Actress | Sofia Scannapieco, sœur de Frankie |
 Sophie Grimaldi | Cast | Actress | La blonde du train |
 Tommy Duggan | Cast | Actor | L'inspecteur-chef Cummings (Angleterre) |
Trevor A. Stephens | Cast | Actor | |
 Yves Barsacq | Cast | Actor | Un gardien de prison de Poissy |
Roland Monk | Cast | Actor | Un soldat Belge du détachement du waggon blindé |
 John Rico | Cast | Actor | Un membre de la mafia italienne |
Yvon Dihé | Cast | Actor | (non crédité) |
| Person | Type | Job | Role(s) |
