| 角色 | 饰演者 | 角色介绍 |
| Richard Cobb | 塞德里克·哈德威克 | |
| Geoffrey Radcliffe | 文森特·普莱斯 | |
| Helen Manson | Nan Grey | |
| Doctor Frank Griffin | John Sutton | |
| Inspector Sampson of Scotland Yard | 塞西尔·凯拉韦 | |
| Willie Spears | Alan Napier | |
| Ben Jenkins | Forrester Harvey | |
| Bit Part (uncredited) | Ernie Adams | |
| Plainclothesman (uncredited) | Jimmy Aubrey | |
| Jim (uncredited) | Billy Bevan | |
| Woman (uncredited) | Clara Blore | |
| (uncredited) | Stanley Blystone | |
| Policeman (uncredited) | Matthew Boulton | |
| Policeman (uncredited) | Edward Brady | |
| Griffin's Secretary (uncredited) | Louise Brien | |
| (uncredited) | Charles Brokaw | |
| (uncredited) | 吉恩·布鲁克斯 | |
| (uncredited) | Frank Coletti | |
| Miner Saying 'Keep the Wig on Willie' (uncredited) | Harry Cording | |
| Detective (uncredited) | Paul England | |
| Constable Briggs (uncredited) | Rex Evans | |
| Prison Governor (uncredited) | Edward Fielding | |
| Passerby at Willie's House (uncredited) | Mary Field | |
| Cookie the Cook (uncredited) | Mary Gordon | |
| (uncredited) | Sidney Grayler | |
| Bill (uncredited) | Frank Hagney | |
| (uncredited) | Barry Hays | |
| Policeman (uncredited) | Frank Hill | |
| Chauffeur (uncredited) | Leyland Hodgson |
