| 角色 | 饰演者 | 角色介绍 |
| Erica's Uncle | 巴西尔·拉德福德 | |
| Photographer Outside Courthouse (uncredited) | 阿尔弗雷德·希区柯克 | |
| Erica Burgoyne | Nova Pilbeam | |
| Robert Tisdall (as Derrick de Marney) | Derrick De Marney | |
| Col. Burgoyne | Percy Marmont | |
| Old Will | Edward Rigby | |
| Erica's Aunt | Mary Clare | |
| Det. Insp. Kent | John Longden | |
| Guy | George Curzon | |
| Christine | Pamela Carme | |
| Det. Sgt. Miller | George Merritt | |
| Solicitor | J.H. Roberts | |
| Lorry Driver | Jerry Verno | |
| Police Sergeant | H.F. Maltby | |
| Police Constable | John Miller | |
| Petrol Pump Attendant (uncredited) | Frank Atkinson | |
| Burgoyne Boy (uncredited) | Clive Baxter | |
| Bit Part (uncredited) | Pamela Bevan | |
| Bit Part (uncredited) | Albert Chevalier | |
| Policeman (uncredited) | Syd Crossley | |
| Bit Part (uncredited) | William Fazan | |
| Singer (uncredited) | Gerry Fitzgerald | |
| Policeman (uncredited) | Richard George | |
| Tramp at Tom's Hat Cafe (uncredited) | Mike Johnson | |
| Bathing Girl (uncredited) | Anna Konstam | |
| Bit Part (uncredited) | Fred O'Donovan | |
| Bit Part (uncredited) | Frederick Piper | |
| Manager of Tom's Hat Cafe (uncredited) | Bill Shine |
