Percy Boon
Richard Attenborough
Mr. Squales
Alastair Sim
The Blonde
Eleanor Summerfield
Jimmy
Jack McNaughton
Jack Rufus
Maurice Denham
Mr Battlebury
Aubrey Dexter
Verriter
Henry Hewitt
Mr Chinkwell
Arthur Howard
Mrs Jan Byl
Fabia Drake
Night Club Receptionist
Sydney Tafler
Police Superintendant
Henry Edwards
Inspector Cartwright
George Cross
Mrs. Josser
Fay Compton
Det Sgt Wilson
Cyril Chamberlain
Det Sgt Taylor
Edward Evans
Mr Banks
John Salew
Clerk of the Court
Russell Waters
Mr Henry Wassall KC
Cecil Trouncer
Mr Veezey Blaize KC
Kenneth Downey
Mr Justice Plymme
Ivor Barnard
Foreman of the Jury
Basil Cunard
1st Warden
Wensley Pithey
2nd Warden
Manville Tarrant
Uncle Henry
Stephen Murray
Commuter on Train (uncredited)
Arthur Lowe
Clerk (uncredited)
Ewen Solon
Bystander (uncredited)
Jack May
Reg Thomason
Female Employee (uncredited)
Myrette Morven
1st Policeman (uncredited)
Ewan Roberts
2nd Policeman (uncredited)
Stanley Beard
Narrator (uncredited)
Leo Genn
Mr. Josser
Wylie Watson
Doris Josser
Susan Shaw
Headlam Fynne
Hugh Griffith
Mrs Vizzard
Joyce Carey
Connie Coke
Ivy St. Helier
Bill
Andrew Crawford
Director
Sidney Gilliat
Screenplay
Producer
Frank Launder
J.B. Williams
Director of Photography
Wilkie Cooper
Original Music Composer
Benjamin Frankel
Editor
Thelma Connell
Executive Producer
J. Arthur Rank
Art Direction
Roy Oxley
Novel
Norman Collins