| 角色 | 演員 | 備註 |
| Percy Boon | 理察·阿滕伯勒（Richard Attenborough） | |
| Mr. Squales | 阿拉斯塔爾·西姆（Alastair Sim） | |
| Mrs. Josser | Fay Compton | |
| Uncle Henry | Stephen Murray | |
| Mr. Josser | Wylie Watson | |
| Doris Josser | Susan Shaw | |
| Mrs. Vizzard | Joyce Carey | |
| Connie Coke | Ivy St. Helier | |
| Bill | Andrew Crawford | |
| Headlam Fynne | 休·格里夫斯（Hugh Griffith） | |
| The Blonde | Eleanor Summerfield | |
| Mrs. Boon | Gladys Henson | |
| Jack Rufus | Maurice Denham | |
| Mr. Justice Plymme | Ivor Barnard | |
| Mr. Henry Wassall | Cecil Trouncer | |
| Mr. Chinkwell | Arthur Howard | |
| Mr. Barks | John Salew | |
| Detective Sergeant Wilson | Cyril Chamberlain | |
| Mr. Battlebury | Aubrey Dexter | |
| Jimmy | Jack McNaughton | |
| Verriter | Henry Hewitt | |
| Mrs. Jan Byl | Fabia Drake | |
| Nighclub Receptionist | Sydney Tafler | |
| Police Superintendent | Henry Edwards | |
| Inspector Cartwright | George Cross | |
| Detective Sergeant Taylor | Edward Evans | |
| Clerk of the Court | Russell Waters | |
| Mr. Veezey Blaize K.C | Kenneth Downey | |
| Foreman of the Jury | Basil Cunard | |
| First Warden | Wensley Pithey | |
| Second Warden | Manville Tarrant | |
| Schoolmistress (uncredited) | Grace Allardyce | |
| Drunk (uncredited) | Arty Ash | |
| 2nd Policeman (uncredited) | Stanley Beard | |
| Woman at door (uncredited) | Elsie Bernard | |
| Prison Officer (uncredited) | John Boxer | |
| Policewoman (uncredited) | Susan Buret | |
| Police Constable (uncredited) | Joe Clark | |
| 1st Woman (uncredited) | Ivy Collins | |
| Juryman (uncredited) | Howard Douglas | |
| Newspaper Seller (uncredited) | Alexander Field | |
| Miss Bowker (uncredited) | Alexis France | |
| Narrator, introduction (uncredited) | 里奧·吉恩（Leo Genn） | |
| (uncredited) | 約翰·格雷森（John Gregson） | |
| Usher (uncredited) | Lionel Grose | |
| Pathologist (uncredited) | Michael Kent | |
| Newsboy (uncredited) | Frederick Knight | |
| Mechanic (uncredited) | Frank Ling | |
| Sister (uncredited) | Lala Lloyd | |
| (uncredited) | 亞瑟·羅維（Arthur Lowe） | |
| Doctor (uncredited) | D.A. Mehan | |
| Taxi Driver (uncredited) | Leonard Morris | |
| Female Employee (uncredited) | Myrette Morven | |
| Police Sergeant (uncredited) | Owen Reynolds | |
| 1st Policeman (uncredited) | Ewan Roberts | |
| Old Gentleman (uncredited) | J.H. Roberts | |
| Warder (uncredited) | Stanley Rose | |
| Clerk (uncredited) | Alan Saynes | |
| 2nd Woman (uncredited) | Nellie Sheffield | |
| Clerk (uncredited) | Ewen Solon | |
| Miss Sweeting (uncredited) | Paula Young | |
