Casting

Director

Roy William Neill

Producer

Roy William Neill

Screenplay

Bertram Millhauser

Novel

Arthur Conan Doyle

Director of Photography

Virgil Miller

Editor

Edward Curtiss

Art Direction

John B. Goodman, Martin Obzina

Set Decoration

Russell A. Gausman, Ted von Hemert

Costume Design

Vera West

Camera Operator

Roswell A. Hoffmann

Basil Rathbone
Basil RathboneSherlock Holmes
Nigel Bruce
Nigel BruceDr. John Watson
Hillary Brooke
Hillary BrookeLydia Marlowe
Henry Daniell
Henry DaniellProfessor James Moriarty
Paul Cavanagh
Paul CavanaghSir George Fenwick
Matthew Boulton
Matthew BoultonInspector Gregson
Eve Amber
Eve AmberMaude Fenwick
Frederick Worlock
Frederick WorlockDr. Onslow
?
Percival VivianDr. Simnell
Coulter Irwin
Coulter IrwinCorporal Williams
Sally Shepherd
Sally ShepherdCrandon
Mary Gordon
Mary GordonMrs. Hudson
?
John BurtonWaring the Mesmerist (uncredited)
?
Harold De BeckerShoelace Vendor Henchman (uncredited)
?
Tony EllisCarter the Hypnotized Subject (uncredited)
Bess Flowers
Bess FlowersBar Patron (seen in mirror) (uncredited)
Kay Harding
Kay Harding4th Victim (uncredited)
?
Alec HarfordCommissioner of the CID (uncredited)
Olaf Hytten
Olaf HyttenFenwick's Butler Norris (uncredited)
Boyd Irwin
Boyd IrwinShort-Tempered Officer Closing Window (uncredited)
Eric Mayne
Eric MayneMember of Mesmer Club (uncredited)
William H. O'Brien
William H. O'BrienPembrook House Waiter (uncredited)