Basil Rathbone

Sherlock Holmes

Acting

Nigel Bruce

Dr. John H. Watson

Acting

Patricia Morison

Mrs. Hilda Courtney

Acting

Frederick Worlock

Colonel Cavanaugh

Acting

Harry Cording

Hamid

Acting

Carl Harbord

Inspector Hopkins

Acting

Holmes Herbert

Ebenezer Crabtree

Acting

Edmund Breon

Julian 'Stinky' Emery

Acting

Patricia Cameron

Evelyn Clifford

Acting

Mary Gordon

Mrs. Hudson

Acting

Ian Wolfe

Commissioner of Scotland Yard

Acting

Leyland Hodgson

Tour Guide

Acting

Marjorie Bennett

Antique Shop Assistant (uncredited)

Acting

William H. O'Brien

Detective at Murder Scene

Acting

Frank Baker

Photographer

Acting

Sally Shepherd

Acting

Wallace Scott

Joe Cisto

Acting

Jack Curtis

Pub Patron (uncredited)

Acting

Cyril Delevanti

Convict at Dartmoor Prison (uncredited)

Acting

Charlie Hall

Cab Driver (uncredited)

Acting

Olaf Hytten

Alfred - Auction House Bookkeeper (uncredited)

Acting

Frank Mills

Pub Patron (uncredited)

Acting

Lillian Bronson

Minister's Wife (uncredited)

Acting

Bobby Hale

Pub Patron (uncredited)

Acting

Alexander Pollard

Crabtree's Assistant at Auction (uncredited)

Acting