 Nigel PatrickChief Insp. John Edward Johnnoe | Chief Insp. John Edward Johnnoe |
 Katherine WoodvilleMary Johnnoe | Mary Johnnoe |
 Colin BlakelyCharlie Ruskin | Charlie Ruskin |
 Derren NesbittBertie Hoyle | Bertie Hoyle |
 Harry AndrewsSupt. Alec Bestwick | Supt. Alec Bestwick |
 Roy KinnearShorty | Shorty |
| MMargaret WhitingMaisie Barton | Maisie Barton |
| JJohn CowleyJim Ruskin | Jim Ruskin |
 Allan CuthbertsonSmythe | Smythe |
 Frank FinlayLeon Sale | Leon Sale |
 Michael ColesBen | Ben |
 Ronald HinesGeoff Lewis | Geoff Lewis |
| PPeter ProwseMick Lonergan | Mick Lonergan |
 George SewellFred Hill | Fred Hill |
 Kenneth J. WarrenLou Waites | Lou Waites |
 Brian WildeLipson | Lipson |
 Peter BowlesPeter The Pole (uncredited) | Peter The Pole (uncredited) |
 Donal DonnellyTommy The Trotter (uncredited) | Tommy The Trotter (uncredited) |
 Harry LandisHicks (uncredited) | Hicks (uncredited) |
| BBernard GoldmanHymie (uncredited) | Hymie (uncredited) |
 Fred HaggertyHoyle's Henchman (uncredited) | Hoyle's Henchman (uncredited) |
| PPeter BraceRuskin's Henchman (uncredited) | Ruskin's Henchman (uncredited) |
| GGeorge HilsdonRuskin's Henchman (uncredited) | Ruskin's Henchman (uncredited) |
| FFaye CraigBlack Woman (uncredited) | Black Woman (uncredited) |
| GGeoffrey DunnMan with Camera (uncredited) | Man with Camera (uncredited) |
 Garfield MorganPolice Inspector (uncredited) | Police Inspector (uncredited) |
| GGeoffrey DentonPolice Inspector (uncredited) | Police Inspector (uncredited) |
 Patrick JordanPolice Inspector (uncredited) | Police Inspector (uncredited) |
 Ray SmithPolice Sergeant (uncredited) | Police Sergeant (uncredited) |
| DDonald TandyPolice Sergeant (uncredited) | Police Sergeant (uncredited) |
