Sherlock Holmes

Basil Rathbone

Acting

Dr. John Watson

Nigel Bruce

Acting

Inspector Lestrade

Dennis Hoey

Acting

Naomi Drake

Evelyn Ankers

Acting

Giles Conover

Miles Mander

Acting

Amos Hodder

Ian Wolfe

Acting

Francis Digby, curator

Charles Francis

Acting

James Goodram, courier

Holmes Herbert

Acting

Museum Guard Bates

Richard Aherne

Acting

Mrs. Hudson

Mary Gordon

Acting

The Hoxton Creeper

Rondo Hatton

Acting

George Gelder (uncredited)

Harry Cording

Acting

Constable With Food Tray (uncredited)

Billy Bevan

Acting

Customs Officer (uncredited)

Leyland Hodgson

Acting

Chauffeur (uncredited)

Eric Wilton

Acting

Maj. Harker's Housekeeper (uncredited)

Lillian Bronson

Acting