Robert Stephens as Sherlock Holmes

Colin Blakely as Dr. John Watson

Geneviève Page as Gabrielle Valadon

Christopher Lee as Mycroft Holmes

Tamara Toumanova as Madame Petrova

Clive Revill as Nikolai Rogozhin

Irene Handl as Mrs. Hudson

Mollie Maureen as Queen Victoria

Stanley Holloway as Gravedigger

Catherine Lacey as Woman in Wheelchair

Peter Madden as Von Tirpitz

Michael Balfour as Cabby

James Copeland as Guide

John Garrie as First Carter

Godfrey James as Second Carter

Robert Cawdron as Hotel Manager

Alex McCrindle as Baggageman

Frank Thornton as Porter

Paul Hansard as Monk

George Benson as Inspector Lestrade

Anne Blake as Madame