 | Gillian Hills als Peggy Foster |
 | Ángel del Pozo als John Kirk Lawford |
 | Silvia Solar als Jackie Polianski |
 | Stelio Candelli als Ronald James |
 | Carlos Otero als Mr. Lewis |
 | Bruno Corazzari als John Kirk Lawford |
 | Goyo Lebrero als Anthony |
 | Manuel Gas als Inspector Walton |
| Gabriel Agustí als Inspector Redford |
| Irene D'Astrea als Anthony's wife |
 | Orchidea De Santis als Shirley |
 | Raf Baldassarre als Man at Subway Station (uncredited) |
| Esteban Dalmases als Waiter (uncredited) |
| Juan Torres als Office worker (uncredited) |
| Juan Bosch | Director |
| Luisa Maria Linares | Novel |
| Juan Bosch | Screenplay |
| Juan Bosch | Dialogue |
| Renato Izzo | Screenplay |
| Renato Izzo | Dialogue |
| Marcello Giombini | Original Music Composer |
| Julio Pérez de Rozas | Director of Photography |
| Eugenio Alabiso | Editor |
| Mario Ambrosino | Set Decoration |
| Mario Ambrosino | Costume Designer |
| Ascensión Hernández | Assistant Makeup Artist |
| Rosa Luciani | Hairstylist |
| Práxedes Martínez | Key Makeup Artist |
| Manlio Rocchetti | Makeup Artist |
| Jacinto Ferrer | Production Assistant |
| Lamberto Andreani | Production Assistant |
| David García | Script Supervisor |
| Carmen Fábregas | Assistant Editor |
| Ana Salmerón | Costumer |
| Santiago Rodríguez | Camera Operator |
| Angelo Pennoni | Still Photographer |
| Enrico Lucidi | Camera Operator |
| Javier Ferrer | Assistant Camera |
| Angelo Spadoni | Sound |
| José Malla | Property Master |
| Jaime Fuentes | Property Master |
| José Ulloa | Assistant Director |
| Pietro Nofri | Production Supervisor |
| Luis Marin | Unit Production Manager |
| Jaime Fuentes | Production Supervisor |
| Alberto De Stefanis | Production Manager |
