Sylvia Sidney
Mrs. Verloc
Sylvia Sidney
Mrs. Verloc
Oskar Homolka
Karl Verloc - Her Husband
Desmond Tester
Stevie - Her Young Brother
John Loder
Ted
Joyce Barbour
Renee
Matthew Boulton
Superintendent Talbot
S. J. Warmington
Hollingshead
William Dewhurst
The Professor
Clare Greet
Mrs. Jones (uncredited)
Aubrey Mather
Greengrocer (uncredited)
Austin Trevor
Monocle Man (uncredited)
Charles Hawtrey
Studious Youngster (uncredited)
Martita Hunt
The Professor's Daughter (uncredited)
Torin Thatcher
Mr. Verloc's Visitor (uncredited)
Peter Bull
Mr. Verloc's Visitor (uncredited)
Alfred Hitchcock
Man Walking Past the Cinema as the Light Is Renewed
Joseph Conrad
Novel
Alfred Hitchcock
Director
Bernard Knowles
Director of Photography
Charles Bennett
Screenplay
Charles Frend
Editor
Albert Jullion
Art Direction
Stephen Dade
Camera Operator
Michael Balcon
Producer
Albert Whitlock
Scenic Artist
Ivor Montagu
Associate Producer
E. V. H. Emmett
Additional Dialogue
Oscar Friedrich Werndorff
Art Direction
Jack Beaver
Music
Pen Tennyson
Assistant Director
Hubert Bath
Music
Louis Levy
Music
Marianne
Wardrobe Designer
Alma Reville
Continuity
Walt Disney
Thanks
Louis Levy
Music Director
Angelina Cameron
Sound Recordist
Joe Strassner
Costume Designer
Helen Simpson
Dialogue
Ian Hay
Dialogue