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