Dan MacDonald
Bonar Colleano
Pat
Susan Shaw
DI Williams
John Longden
Customs Officer Andrews
Michael Golden
Mike
Christopher Hewett
Plainclothes Policeman in Squad Car (uncredited)
John Adams
Squad Car Officer (uncredited)
John Arnatt
Ethel the Barmaid (uncredited)
Mae Bacon
Garage attendant (uncredited)
Ian Bannen
George (uncredited)
George Benson
Pamela's Boyfriend (uncredited)
Arthur Bentley
The Murdered Watchman (uncredited)
Beckett Bould
Sally
Renée Asherson
Detective in Pub (uncredited)
John Boxer
Sam (uncredited)
Michael Corcoran
Jock (uncredited)
Arthur Cortez
Customs Officer (uncredited)
Dan Cressey
Officer on the Dunbar (uncredited)
David Davies
Police Constable Witnessing Robbery (uncredited)
Frank Forsyth
Mary (uncredited)
Rowena Gregory
Sailor on Barge (uncredited)
Fred Griffiths
Pat Hagan
Superintendent (uncredited)
Ellis Irving
Johnny Lambert
Earl Cameron
2nd Engineer (uncredited)
Sam Kydd
Detective Detaining Suspect (uncredited)
Howard Lang
Bit Part (uncredited)
James Liggat
First Tram Conductor (uncredited)
Victor Maddern
Sailor on the Dunbar (uncredited)
Jack May
Captain of Dunbar (uncredited)
George Merritt
Seaman on the Dunbar (uncredited)
Arthur Mullard
Commissionaire (uncredited)
Laurence Naismith
Singer in Pub (uncredited)
Paul Rich
Dock Worker (uncredited)
Jack Sharp
Maisie
Moira Lister
Station Sgt. (uncredited)
Campbell Singer
Pub Patron (uncredited)
George Spence
Edward - Speaker at Hyde Park Corner (uncredited)
Ivan Staff
Garage Pump Attendant (uncredited)
Eric Thompson
Detective at Bank (uncredited)
Frederick Treves
Drinking Club Blonde (uncredited)
Mavis Villiers
Pianist (uncredited)
Michael Ward
Inspector Jim Moss (uncredited)
John Warwick
Sgt. - River Police (uncredited)
Russell Waters
Speaking Extra (uncredited)
Henry Webb
Charlie Vernon - acrobat / George
Max Adrian
Alf - Theatre Performer (uncredited)
Meadows White
Pamela, Maisie's sister
Joan Dowling
Engine Room Officer Trotter
James Robertson Justice
Harry
Leslie Phillips
Alf
Alfie Bass
Screenplay
John Eldridge
Director
Basil Dearden
Associate Producer
Michael Relph
Producer
Michael Balcon
Jack Whittingham
Art Direction
Jim Morahan
Original Music Composer
John Addison
Hairdresser
Barbara Barnard
Makeup Artist
Harry Frampton
Ernest Taylor
Director of Photography
Gordon Dines
Editor
Peter Tanner
Costume Design
Anthony Mendleson
Script Supervisor
Jean Graham
Camera Operator
Chic Waterson
Special Effects
Sydney Pearson
Additional Director of Photography
Lionel Banes
Sound Recordist
Arthur Bradburn