- Rupert Evans - Williams
- Elizabeth Seal - Gwen
- Jack Stewart - Gregson
- Frank Thornton - Inspector Finch
- Trevor Reid - Commissioner
- Edwin Richfield - Nat
- Jane Harwood - Cashier
- Madge Brindley - Mrs. Evans
- Joan Carol - Scientific Officer
- Tom Bowman - Detective Sergeant (uncredited)
- Jim Brady - Policeman at Bank (uncredited)
- Chick Fowles - Detective at Briefing (uncredited)
- Nora Gordon - Fred's Landlady (uncredited)
- Vernon Greeves - Radio Detector Operator (uncredited)
- Pat Hagan - Police Constable at Warehouse (uncredited)
- Patrick Halpin - Detective at Briefing (uncredited)
- Hubert Hill - Plotter in Taxi Control Room (uncredited)
- Aileen Lewis - Barmaid (uncredited)
- George Margo - American Serviceman in the Taxi (uncredited)
- Arthur Mullard - Detective at Briefing (uncredited)
- Fred Nicholas - Detective at Briefing (uncredited)
- Joe Phelps - Police Constable (uncredited)
- Cleo Rose - Girl in the Taxi (uncredited)
- Pat Ryan - Cop at Bank (uncredited)
- Leonard Sharp - Charlie - First Bank Nightwatchman (uncredited)
- Madoline Thomas - Apex Charlady (uncredited)
- Joe Wadham - Travel Agency Manager (uncredited)
- Ian Wilson - Second Bank Nightwatchman (uncredited)
- Vernon Sewell
- Doris Martin
- Vernon Sewell
-
George Maynard
Jimmy Hanley interpreta a Fred en la película.
Lana Morris interpreta a Myra en la película.
Sonia Holm interpreta a Jean en la película.
Jack Allen interpreta a Parker en la película.
Sam Kydd interpreta a Spencer en la película.
Pat McGrath interpreta a Henry en la película.
Michael Mellinger interpreta a Tim en la película.
Charles Morgan interpreta a MacLaren en la película.
Bruce Beeby hace el papel de Inspector Rawlings.
Rupert Evans interpreta a Williams en la película.
Elizabeth Seal hace el papel de Gwen.
Jack Stewart interpreta a Gregson en la película.
Frank Thornton hace el papel de Inspector Finch.
Trevor Reid interpreta a Commissioner en la película.
Edwin Richfield interpreta a Nat en la película.
Jane Harwood hace el papel de Cashier.
Madge Brindley interpreta a Mrs. Evans en la película.
Joan Carol hace el papel de Scientific Officer.
Tom Bowman interpreta a Detective Sergeant (uncredited) en la película.
Jim Brady hace el papel de Policeman at Bank (uncredited).
Chick Fowles interpreta a Detective at Briefing (uncredited) en la película.
Nora Gordon interpreta a Fred's Landlady (uncredited) en la película.
Vernon Greeves interpreta a Radio Detector Operator (uncredited) en la película.
Pat Hagan interpreta a Police Constable at Warehouse (uncredited) en la película.
Patrick Halpin hace el papel de Detective at Briefing (uncredited).
Hubert Hill interpreta a Plotter in Taxi Control Room (uncredited) en la película.
Aileen Lewis hace el papel de Barmaid (uncredited).
George Margo interpreta a American Serviceman in the Taxi (uncredited) en la película.
Arthur Mullard interpreta a Detective at Briefing (uncredited) en la película.
Fred Nicholas hace el papel de Detective at Briefing (uncredited).
Joe Phelps hace el papel de Police Constable (uncredited).
Cleo Rose interpreta a Girl in the Taxi (uncredited) en la película.
Pat Ryan interpreta a Cop at Bank (uncredited) en la película.
Leonard Sharp hace el papel de Charlie - First Bank Nightwatchman (uncredited).
Madoline Thomas interpreta a Apex Charlady (uncredited) en la película.
Joe Wadham interpreta a Travel Agency Manager (uncredited) en la película.
Ian Wilson interpreta a Second Bank Nightwatchman (uncredited) en la película.
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