Cast
John Stratton
Sergeant Ward
Maureen Davis
The Young Workman's Wife - Mrs. James
Barry Keegan
Detective Constable in Hospital Ward
Robert Moor
Pat Ryan
Ralph Truman
Colonel Blenkinsop
Sydney Tafler
Stone
Peter Burton
Creasey
Stratford Johns
Constable (uncredited)
David Lodge
Detective at Car Lot (uncredited)
Jack Hawkins
Supt Tom Halliday
Ian Bannen
The Young Workman - Stanley James
David Davies
Welsh Police Constable
Harold Goodwin
Official at Somerset House
Glyn Houston
Detective Sergeant in 'Q' car
George Holdcroft
Arthur Rigby
Detective Inspector at Chester
John Welsh
House Agent at Shepperton
Fred Griffiths
Geoffrey Keen
Chief Superintendent Jim Malcolm
Maureen Delaney
Mrs. Stevens, the daily help
Jameson Clark
Detective Superintendent Ogilvie
Guy Standeven
Detective (uncredited)
Martin Wyldeck
Officer in Criminal Records Department (uncredited)
Sam Kydd
Police Constable in Information Room
Richard Leech
Nightwatchman / Gilson
William Mervyn
Manager of Festival Hall
Nicholas Parsons
Police Constable Bates
Vincent Ball
P.C. at Hospital (uncredited)
George Rose
Slob
John Paul
Alec McCowen
House Surgeon
Harry Locke
Secondhand Dealer
Peter Welch
CID Man (uncredited)
Joss Ambler
Cashier at Shipping Office
Roy Purcell
Frazer Hines
Urchin (uncredited)
Jack McNaughton
Dorothy Alison
Mary Halliday
Meredith Edwards
Mr. Thomas
Richard Davies
Detective (uncredited)