Starring:
Basil Rathbone
Nigel Bruce
Hillary Brooke
Henry Daniell
Paul Cavanagh
Matthew Boulton
Eve Amber
Frederick Worlock
Coulter Irwin
Sally Shepherd
Mary Gordon
Fred Aldrich
Eve Ashley
John Burton
Harold De Becker
Leslie Denison
Tony Ellis
Kay Harding
Alec Harford
Ivo Henderson
Tommy Hughes
Colin Hunter
Olaf Hytten
Boyd Irwin
Eric Mayne
William H. O'Brien
Violet Seaton
Arthur Stenning
Percival Vivian
Written by:
Bertram Millhauser
Arthur Conan Doyle
Directed by:
Roy William Neill
Produced by:
Roy William Neill
Howard Benedict