Director/a
Charles Frend
DIRECTOR/A
Reparto (por orden de créditos)
Jack Hawkins
Detective Superintendent Tom Halliday
John Stratton
Detective Sergeant Ward
Dorothy Alison
Mary Halliday
Michael Brooke
Tony Halliday
Sam Kydd
Police Constable in Information Room
Glyn Houston
Detective Sergeant in 'Q' car
Richard Leech
Nightwatchman
Newton Blick
Deputy Commander
Geoffrey Keen
Chief Superintendent Jim Malcolm
Sydney Tafler
Stone
Peter Burton
Creasey
George Rose
Slob
Arthur Rigby
Detective Inspector at Chester
Ralph Truman
Colonel Blenkinsop
Ian Bannen
The Young Workman - Stanley James
Maureen Davis
The Young Workman's Wife - Mrs. James
John Warwick
Detective Inspector at Shipping Office
Joss Ambler
Cashier at Shipping Office
Barry Keegan
Detective Constable in Hospital Ward
Alec McCowen
House Surgeon
Harry Locke
Secondhand Dealer
Nicholas Parsons
Police Constable Bates
Warwick Ashton
Newspaper Circulation Manager
Ursula Howells
Mrs. Elliot
David Davies
Welsh Police Constable
Julie Milton
Welsh Newsagent's Daughter
Meredith Edwards
Mr. Thomas
Harold Goodwin
Official at Somerset House
John Welsh
House Agent at Shepperton
Gillian Webb
Housewife at Shepperton
Maureen Delaney
Mrs. Stevens, the daily help
Jameson Clark
Detective Superintendent Ogilvie
William Mervyn
Manager of Festival Hall
Vincent Ball
P.C. at Hospitaluncredited
Dennis Carnell
Supervisoruncredited
Edward Cast
Policeman Constable - Information Roomuncredited
Michael Collins
Detective in 'Q' Caruncredited
Richard Davies
Detectiveuncredited
Fred Davis
Police Radio Reporteruncredited
Jack Dearlove
Shipping Office Clerkuncredited
Robert Gregory
Detective shadowing Creaseyuncredited
Fred Griffiths
Barmanuncredited
Patrick Halpin
Policemanuncredited
Aidan Harrington
Police Photographeruncredited
Frazer Hines
Urchinuncredited
George Holdcroft
Police Administratoruncredited
Lindsay Hooper
Arthur Howell
Stratford Johns
Constableuncredited
David Lodge
Detective at Car Lotuncredited
Colin McKenzie
Police Administatoruncredited
Jack McNaughton
Newspaper Circulation Manager (Manchester)uncredited
Robert Moore
Sergeant at Bow Street Police Stationuncredited
Fred Nicholas
Detective in 'Q' caruncredited
John Paul
Police Radio Operatoruncredited
Roy Purcell
Fingerprint Manuncredited
Charles Rayford
Milkmanuncredited
Anthony Richmond
Childuncredited
Pat Ryan
Shop Assistantuncredited
Guy Standeven
Philip Stewart
Man at Somerset Houseuncredited
Frederick Treves
Detective tailing Creaseyuncredited
Peter Welch
CID Manuncredited
Meadows White
Burglar Alarm Engineeruncredited
John Wilder
Sonnie Willis
Police Driveruncredited
Martin Wyldeck
Officer in Criminal Records Departmentuncredited