Jimmy Hanley as Fred

Lana Morris as Myra

Sonia Holm as Jean

Jack Allen as Parker

Sam Kydd as Spencer

Pat McGrath as Henry

Michael Mellinger as Tim

Charles Morgan as MacLaren

Bruce Beeby as Inspector Rawlings

Rupert Evans as Williams

Elizabeth Seal as Gwen

Jack Stewart as Gregson

Frank Thornton as Inspector Finch

Trevor Reid as Commissioner

Edwin Richfield as Nat

Jane Harwood as Cashier

Madge Brindley as Mrs. Evans

Joan Carol as Scientific Officer

Tom Bowman as Detective Sergeant (uncredited)

Jim Brady as Policeman at Bank (uncredited)

Chick Fowles as Detective at Briefing (uncredited)

Nora Gordon as Fred's Landlady (uncredited)

Vernon Greeves as Radio Detector Operator (uncredited)

Pat Hagan as Police Constable at Warehouse (uncredited)

Patrick Halpin as Detective at Briefing (uncredited)

Hubert Hill as Plotter in Taxi Control Room (uncredited)

George Margo as American Serviceman in the Taxi (uncredited)

Arthur Mullard as Detective at Briefing (uncredited)

Fred Nicholas as Detective at Briefing (uncredited)

Joe Phelps as Police Constable (uncredited)

Cleo Rose as Girl in the Taxi (uncredited)

Pat Ryan as Cop at Bank (uncredited)

Leonard Sharp as Charlie - First Bank Nightwatchman (uncredited)

Madoline Thomas as Apex Charlady (uncredited)

Joe Wadham as Travel Agency Manager (uncredited)

Ian Wilson as Second Bank Nightwatchman (uncredited)