Basil Rathbone

Sherlock Holmes

Nigel Bruce

Dr. Watson

Ida Lupino

Ann Brandon

George Zucco

Professor Moriarty

Alan Marshal

Jerrold Hunter

Terry Kilburn

Billy

Henry Stephenson

Sir Ronald Ramsgate

E.E. Clive

Inspector Bristol

Arthur Hohl

Bassick

May Beatty

Brandon Housekeeper [Script name: Mrs. Jameson]

Peter Willes

Lloyd Brandon

Mary Gordon

Mrs. Hudson

Holmes Herbert

Justice

Mary Forbes

Lady Conyngham

Frank Dawson

Dawes

Anthony Kemble-Cooper

Tony

William Austin

Stranger

Frank Baker

Unconfirmed Presence [AFI Catalog Name: Tompkins] (unconfirmed)

Gordon Hart

Unspecified Guard (unconfirmed)

und andere...