Calificación
Reparto

Basil Rathbone
Sherlock Holmes

Nigel Bruce
Dr. John Watson

Aubrey Mather
Alastair

Paul Cavanagh
Simon Merrivale

Dennis Hoey
Inspector Lestrade

Harry Cording
John Simpson

Holmes Herbert
Alan Cosgrave

Sally Shepherd
Mrs. Monteith

Gavin Muir
Chalmers

Florette Hillier
Alison MacGregor

David Clyde
Alex MacGregor

Doris Lloyd
Bessie

Cyril Delevanti
Stanley Raeburn (uncredited)

Alec Craig
Angus (uncredited)

Richard Alexander
Ralph King (uncredited)

Bobby Hale
Pub Patron (uncredited)