 | Kirk Douglas als Steve Wallace |
 | Giuliano Gemma als Marco |
 | Florinda Bolkan als Anna |
 | Wolfgang Preiss als Miller |
 | Reinhard Kolldehoff als Detective Hoffman |
 | Romano Puppo als Miller's Lieutenant |
 | Bruno Corazzari als Eric |
 | John Bartha als Murdered Security Guard |
 | Allen Stanley |
 | Vittorio Fanfoni |
 | Luigi Antonio Guerra |
| Michele Lupo | Writer |
| Nico Ducci | Writer |
| Francesco Bronzi | Art Direction |
| Michele Lupo | Director |
| Marina Cicogna | Producer |
| Manolo Bolognini | Producer |
| Antonietta Zita | Editor |
| Mino Roli | Writer |
| Ennio Morricone | Original Music Composer |
| Roberto Leoni | Story |
| Tonino Delli Colli | Director of Photography |
