Dans une écurie de l'hippodrome de Vincennes, le cheval Nicolo est retrouvé mort... Univers : Les courses hippiques
| Name | Type | Role | |
|---|---|---|---|
| Henry Grangé | Writer | ||
| André Maheux | Writer | ||
| Roger Dutoit | Guest Star | René Savy | |
| Blanchette Brunoy | Guest Star | Madeleine Savy | |
| Jacques Joignant | Guest Star | des jockeys | |
| Serge Bento | Guest Star | ||
| Robert Arnoux | Guest Star | Verniolle | |
| Hélène Laffly | Guest Star | la bonne | |
| Eugène Berthier | Guest Star | le gardien | |
| Charles Lavialle | Guest Star | ||
| Michèle Bardollet | Guest Star | Colette Ferrières | |
| Marcel Béglier | Guest Star | le chauffeur de la PJ | |
| Pierre Naugier | Guest Star | ||
| Paul Bisciglia | Guest Star | des lads | |
| Jean Rupert | Guest Star | l'agent | |
| Henri Guisol | Guest Star | Mesnil-Beaugé | |
| Lucien Frejis | Guest Star | le peseur | |
| Christian Brocard | Guest Star | ||
| Serge Sauvion | Guest Star | Maurice Chevillon | |
| Étienne Bierry | Guest Star | Pierre Cahuzac | |
| Nadine Alari | Guest Star | Simone Verniolle | |
| Lucien Hubert | Guest Star | le vétérinaire | |
| Roger Bret | Guest Star | ||
| Claude Loursais | Director | ||
| Pierre Collet | Actor | L'agent de la PJ |