The Secret Voice is a 1936 British thriller film directed by George Pearson and starring John Stuart, Diana Beaumont and John Kevan.^[1] The screenplay concerns a scientist trying to prevent his new invention from being discovered by enemy spies.

A young scientist tries to protect his new invention from being discovered by enemy spies.

• John Stuart - Jim Knowles
• Diana Beaumont - Helen Allinson
• John Kevan - Dick Allinson
• Henry Victor - Brandt
• Ruth Gower - Joan Grayson
• Monti DeLyle - Perez
• James Carew - Scotty

• The Secret Voice at IMDb