| 角色 | 饰演者 | 角色介绍 |
| Dr. Browning | 文森特·普莱斯 | |
| Fremont | 克里斯托弗·李 | |
| Benedek | 彼得·库欣 | |
| Supt.Bellaver | Alfred Marks | |
| David Sorel | Christopher Matthews | |
| Sylvia | Judy Huxtable | |
| Erika | Yutte Stensgaard | |
| Ludwig | Anthony Newlands | |
| Griffin | Julian Holloway | |
| Prof. Kingsmill | Kenneth Benda | |
| Helen Bradford | Judy Bloom | |
| Konratz | Marshall Jones | |
| Schweitz | 彼得·萨利斯 | |
| Jane | Uta Levka | |
| Det. Sgt. Jimmy Joyce | Clifford Earl | |
| Ken Sparten | Nigel Lambert | |
| Keith | Michael Gothard | |
| Det. Insp. Strickland (credit only) | David Lodge | |
| Nurse | Kay Adrian | |
| Rogers | Edgar D. Davies | |
| Valerie | Rosalind Elliot | |
| Tramp | Leslie Ewin | |
| Singer (as Amen Corner) | Andy Fairweather-Low | |
| Matron | Lee Hudson | |
| Fryer | Stephen Preston | |
| Organist (as Amen Corner) | Blue Weaver |
