Cast & crew
Death Knocks Twice (1969)
Directed by Harald Philipp Written by Harald Philipp, Sergio Garrone, Mario Di Nardo, Max Pierre Schaeffer
Cast
| Lanfranco Cobianchi | |
| Tom Felleghy | Berry Gordy |
| Hélène Chanel | Angela |
| Dean Reed | Martin |
| Mario Brega | Riccardo |
| Teodoro Corrà | Guino Rinaldo |
| Bruno Ariè | Yamomoto's Henchman |
| Femi Benussi | Simmons |
| Anita Ekberg | Ferretti |
| Antonietta Fiorito | (credit only) |
| Leon Askin | Zoja Mangano |
| Renato Baldini | Lionel |
| Fabio Testi | Francesco |
| Adolfo Celi | Professor Pacoli |
| Werner Peters | Hollmann |
| Ini Assmann | Ellen |
| Riccardo Garrone | Armando |
| Marlies Petersen | Babsie |
| Nadja Tiller | DI Chapman |
Crew
| Gino Santini | Second Unit Director of Photography |
| Piero Umiliani | Original Music Composer |
| Claudio Racca | Director of Photography |
| Harald Philipp | Screenplay |
| Sergio Garrone | Screenplay |
| Bruno Ariè | Stunt Coordinator |
| Antonio Girasante | Production Manager |
| Mario Di Nardo | Screenplay |
| Harald Philipp | Director |
| Alfred Srp | Editor |
| Sergio Garrone | Story |
| Max Pierre Schaeffer | Story |