Fred Martin

Jimmy Hanley

Jean

Sonia Holm

Myra

Lana Morris

Jean

Sonja Helm

Parker

Jack Allen

Spencer

Sam Kydd

Inspector Finch

Frank Thornton

Henry

Pat McGrath

Inspector Rawlings

Bruce Beeby

Tim

Michael Mellinger

Gwen

Elizabeth Seal

J. L. MacLaren

Charles Morgan

Williams

Rupert Evans

Gregson

Jack Stewart

Second Bank Nightwatchman (uncredited)

Ian Wilson

Nat

Edwin Richfield

Rupert Holliday Evans

Commissioner

Trevor Reid

Mrs. Evans

Madge Brindley

Scientific Officer

Joan Carol

Detective Sergeant (uncredited)

Tom Bowman

Policeman at Bank (uncredited)

Jim Brady

Detective at Briefing (uncredited)

Chick Fowles

Fred's Landlady (uncredited)

Nora Gordon

Radio Detector Operator (uncredited)

Vernon Greeves

Police Constable at Warehouse (uncredited)

Pat Hagan

Detective at Briefing (uncredited)

Patrick Halpin

American Serviceman in the Taxi (uncredited)

George Margo

Detective at Briefing (uncredited)

Arthur Mullard

Detective at Briefing (uncredited)

Fred Nicholas

Cop at Bank (uncredited)

Pat Ryan

Apex Charlady (uncredited)

Madoline Thomas

Travel Agency Manager (uncredited)

Joe Wadham