| Diabolik | 约翰·菲利浦·劳
 | |
| Eva Kant | 玛丽莎·梅尔
 | |
| Inspector Ginko | 米歇尔·皮寇利
 | |
| Ralph Valmont | 阿道夫·赛利
 | |
| Police Chief | Claudio Gora | |
| Sergeant Danek | Mario Donen | |
| Minister's Assistant | Renzo Palmer | |
| Lady Clark | Caterina Boratto | |
| Prostitute | Lucia Modugno | |
| Rose | Annie Gorassini | |
| Lorry Driver | Carlo Croccolo
 | |
| Policewoman (as Lidia Biondi C.S.C.) | Lidia Biondi | |
| Bank Manager | Andrea Bosic | |
| Valmont's Henchman | Federico Boido | |
| Valmont's Henchman | Tiberio Mitri | |
| Valmont's Henchman | Isarco Ravaioli | |
| Morgue Physician | Giorgio Sciolette | |
| Minister of Finance (as Terry Thomas) | 泰瑞·托马斯
 | |
| Dr. Vernier (uncredited) | Giulio Donnini | |
| Tony (uncredited) | Giuseppe Fazio | |
| Rudy (uncredited) | Giorgio Gennari | |
| Valmont's Henchman (uncredited) | Wolfgang Hillinger | |
