| 角色 | 饰演者 | 角色介绍 |
| John Alexander | 克劳斯·金斯基 | |
| Christine | Christiane Krüger | |
| Inspector Stevens | Günther Stoll | |
| Liz | Annabella Incontrera | |
| Mr. Brown | 悉尼·卓别林 | |
| Alice | Barbara Nelli | |
| Helen Alexander | 玛格丽特·李 | |
| (hardcore inserts - French 1976 version) | Alice Arno | |
| Servant | Carlo Marcolino | |
| Inspector Gordon | Luciano Spadoni | |
| (uncredited) | Ignazio Dolce | |
| (uncredited) | Bedy Moratti | |
| Peter (uncredited) | Gastone Pescucci | |
| (uncredited) | Claudio Trionfi |
