- Gus McNaughton - Salesman on the Flying Scotsman
- Jerry Verno - Salesman on the Flying Scotsman
- Peggy Simpson - The Jordans' Maid
- Matthew Boulton - Fake Police Officer (uncredited)
- Carleton Hobbs - Fake Police Officer (uncredited)
- Elizabeth Inglis - Professor Jordan's Daughter Pat (uncredited)
- Quinton McPherson - Clergyman on the Flying Scotsman (uncredited)
- Frederick Piper - The Milkman (uncredited)
- Hilda Trevelyan - The Innkeeper's Wife (uncredited)
- Ivor Barnard - Political Meeting Chairman (uncredited)
- Ex-Det. Sergt. Bishop - Police Sergeant (uncredited)
- Wallace Bosco - Palladium Doorman (uncredited)
- Vida Hope - Usherette (uncredited)
- James Knight - Detective at London Palladium (uncredited)
- Miles Malleson - Palladium Manager (uncredited)
- John Rae - Audience Member at Political Meeting (uncredited)
- John Turnbull - Scottish Police Inspector (uncredited)
- S. J. Warmington - Scotland Yard Man (uncredited)
- Charles Bennett - Second Passerby Near the Bus (uncredited)
- Noel Birkin - Minor Role (uncredited)
- Alfred Hitchcock
- Alma Reville
- Alma Reville
- Charles Bennett
- John Buchan
- Michael Balcon
- Ivor Montagu
- Louis Levy
- Louis Levy
- Louis Levy
Robert Donat interpreta a Richard Hannay en la película.
Madeleine Carroll hace el papel de Pamela.
Lucie Mannheim interpreta a Annabella Smith en la película.
Godfrey Tearle interpreta a Professor Jordan en la película.
Peggy Ashcroft hace el papel de The Crofter's Wife Margaret.
John Laurie hace el papel de John the Crofter.
Helen Haye interpreta a Louisa Jordan en la película.
Frank Cellier interpreta a Sheriff Watson en la película.
Wylie Watson interpreta a Mr. Memory en la película.
Gus McNaughton interpreta a Salesman on the Flying Scotsman en la película.
Jerry Verno interpreta a Salesman on the Flying Scotsman en la película.
Peggy Simpson interpreta a The Jordans' Maid en la película.
Matthew Boulton hace el papel de Fake Police Officer (uncredited).
Pat Hagate interpreta a M.C. Who Introduces Mr. Memory (uncredited) en la película.
Alfred Hitchcock interpreta a Man Walking Past Bus (uncredited) en la película.
Carleton Hobbs interpreta a Fake Police Officer (uncredited) en la película.
Elizabeth Inglis interpreta a Professor Jordan's Daughter Pat (uncredited) en la película.
Quinton McPherson interpreta a Clergyman on the Flying Scotsman (uncredited) en la película.
Frederick Piper interpreta a The Milkman (uncredited) en la película.
Hilda Trevelyan interpreta a The Innkeeper's Wife (uncredited) en la película.
Ivor Barnard interpreta a Political Meeting Chairman (uncredited) en la película.
Ex-Det. Sergt. Bishop interpreta a Police Sergeant (uncredited) en la película.
Wallace Bosco interpreta a Palladium Doorman (uncredited) en la película.
Vida Hope hace el papel de Usherette (uncredited).
James Knight interpreta a Detective at London Palladium (uncredited) en la película.
Miles Malleson interpreta a Palladium Manager (uncredited) en la película.
John Rae interpreta a Audience Member at Political Meeting (uncredited) en la película.
John Turnbull hace el papel de Scottish Police Inspector (uncredited).
S. J. Warmington hace el papel de Scotland Yard Man (uncredited).
Charles Bennett hace el papel de Second Passerby Near the Bus (uncredited).
Noel Birkin hace el papel de Minor Role (uncredited).
Charles Hubert Renard hace el papel de Second Violinist (uncredited).
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