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