Christopher Lee

as Sherlock Holmes

Patrick Macnee

as Dr. John Watson

Jenny Seagrove

as Lillie Langtry

Joss Ackland

as King Edward

Richard Todd

as Lord Roberts

Claude Akins

as Theodore Roosevelt

Anthony Fridjhon

as Constantine Mavropolis

Claudia Udy

as Amelia Roosevelt Morrison

Neil McCarthy

as Captain James Morrison

Jerome Willis

as Mycroft Holmes

Ron Smerczak

as Lt. Grisholm

Margaret John

as Mrs. Hudson

Stephen Chigorimbo

as Waiter on Train