After receiving a mobster's heart as a transplant, a modest bank teller embarks on a life of criminal exploits.
| Actor | Role |
|---|---|
 Francis BlancheModeste Miette | Modeste Miette |
 Aldo MaccioneAldo | Aldo |
| SSalvatore SennaRico | Rico |
| NNico il GrandeNico | Nico |
 Michel GalabruFather #1 | Father #1 |
 Achille ZavattaFather #2 | Father #2 |
 Serge DavriFather #3 | Father #3 |
 Sydney ChaplinBank Director | Bank Director |
 AmarandeWidow Cartone | Widow Cartone |
 Micha BayardMiss Pussiau | Miss Pussiau |
 Chantal NobelMiss Ducoeurjoli | Miss Ducoeurjoli |
 SimBalempier, head of department | Balempier, head of department |
 Bernard LavaletteNotary | Notary |
 Philippe ClairVicar | Vicar |
| AAndré GilleNot listed | Not listed |
 Gérard CroceGangster | Gangster |
| RRené LesartesseNot listed | Not listed |
 Pierre ReppPrime Minister | Prime Minister |
 Dominique ZardiGangster | Gangster |
 CarlosGendarme | Gendarme |
 Ibrahim SeckNot listed | Not listed |
 Carlo NellNot listed | Not listed |
| VVictor BéniardNot listed | Not listed |
 André BadinNot listed | Not listed |
| JJimmy KaroubiNot listed | Not listed |
| JJacques WajmardAl Cartone | Al Cartone |
| AAnnie RoudierMama #1 | Mama #1 |
| JJacqueline ClémentNot listed | Not listed |
 Annick BergerMama #2 | Mama #2 |
| LLise RoyNot listed | Not listed |