Sherlock Holmes

Basil Rathbone

Acting

Dr. John Watson

Nigel Bruce

Acting

Alastair

Aubrey Mather

Acting

Simon Merrivale

Paul Cavanagh

Acting

Inspector Lestrade

Dennis Hoey

Acting

John Simpson

Harry Cording

Acting

Alan Cosgrave

Holmes Herbert

Acting

Mrs. Monteith

Sally Shepherd

Acting

Chalmers

Gavin Muir

Acting

Alison MacGregor

Florette Hillier

Acting

Alex MacGregor

David Clyde

Acting

Bessie

Doris Lloyd

Acting

Stanley Raeburn (uncredited)

Cyril Delevanti

Acting

Angus (uncredited)

Alec Craig

Acting

Ralph King (uncredited)

Richard Alexander

Acting

Pub Patron (uncredited)

Bobby Hale

Acting