 |
Sergio Rossi as Thomas Royle |
 |
Giuseppe Pambieri as Neville Strange |
 |
Laura Trotter as Kay |
 |
Margherita Guzzinati as Audrey |
 |
Angela Goodwin as Mary Aldin |
 |
Andrea Bosic as Avvocato Treves |
 |
Alida Valli as Lady Camilla Tressilian |
 |
Fabrizio Moroni as Ted Latimer |
 |
Renato Montalbano as Sovraintendente Battle |
 |
Renzo Ozzano as L'agente Benson |
 |
Maurizio Romoli as L'ispettore Reach |
| Camera | Ludovico Negri Della Torre | Director of Photography |
| Writing | Agatha Christie | Novel |
| Directing | Stefano Roncoroni | Director |
| Crew | Connie Ricono | Translator |
| Writing | Stefano Roncoroni | Adaptation |
| Lighting | Ludovico Negri Della Torre | Lighting Technician |
| Costume & Make-Up | Dario Cecchi | Costumer |
| Art | Davide Negro | Set Designer |
