 Jimmy HanleyFred | Fred |
 Lana MorrisMyra | Myra |
 Sonia HolmJean | Jean |
 Jack AllenParker | Parker |
 Sam KyddSpencer | Spencer |
 Pat McGrathHenry | Henry |
 Michael MellingerTim | Tim |
| CCharles MorganMacLaren | MacLaren |
| BBruce BeebyInspector Rawlings | Inspector Rawlings |
| RRupert EvansWilliams | Williams |
 Elizabeth SealGwen | Gwen |
 Jack StewartGregson | Gregson |
 Frank ThorntonInspector Finch | Inspector Finch |
 Trevor ReidCommissioner | Commissioner |
 Edwin RichfieldNat | Nat |
| JJane HarwoodCashier | Cashier |
| MMadge BrindleyMrs. Evans | Mrs. Evans |
| JJoan CarolScientific Officer | Scientific Officer |
 Tom BowmanDetective Sergeant (uncredited) | Detective Sergeant (uncredited) |
 Jim BradyPoliceman at Bank (uncredited) | Policeman at Bank (uncredited) |
| CChick FowlesDetective at Briefing (uncredited) | Detective at Briefing (uncredited) |
 Nora GordonFred's Landlady (uncredited) | Fred's Landlady (uncredited) |
| VVernon GreevesRadio Detector Operator (uncredited) | Radio Detector Operator (uncredited) |
| PPat HaganPolice Constable at Warehouse (uncredited) | Police Constable at Warehouse (uncredited) |
| PPatrick HalpinDetective at Briefing (uncredited) | Detective at Briefing (uncredited) |
| HHubert HillPlotter in Taxi Control Room (uncredited) | Plotter in Taxi Control Room (uncredited) |
| GGeorge MargoAmerican Serviceman in the Taxi (uncredited) | American Serviceman in the Taxi (uncredited) |
 Arthur MullardDetective at Briefing (uncredited) | Detective at Briefing (uncredited) |
| FFred NicholasDetective at Briefing (uncredited) | Detective at Briefing (uncredited) |
| JJoe PhelpsPolice Constable (uncredited) | Police Constable (uncredited) |
