Nicholas Rowe
Sherlock Holmes
Alan Cox
John Watson
Sophie Ward
Elizabeth Hardy
Anthony Higgins
Professor Rathe
Susan Fleetwood
Mrs. Dribb
Roger Ashton-Griffiths
Det. Sgt. Lestrade
Matthew Ryan
Dudley's Friend
Earl Rhodes
Dudley
Freddie Jones
Chester Cragwitch
Patrick Newell
Bentley Booster
Nadim Sawalha
Khasek - Lower Nile Tavern Owner
Nigel Stock
Rupert T. Waxflatter
Brian Oulton
Master Snelgrove
Donald Eccles
The Reverend Duncan Nesbitt
Matthew Blakstad
Dudley's Friend
Jonathan Lacey
Dudley's Friend
Walter Sparrow
Ethan Engel
Roger Brierley
Mr. Holmes
Vivienne Chandler
Mrs. Holmes
Lockwood West
Curio Shop Owner
John Scott Martin
Cemetery Caretaker
George Malpas
School Porter
Willoughby Goddard
School Reverend
Michael Cule
Policeman with Lestrade
Ralph Tabakin
Policeman in Shop Window
Nancy Nevinson
Hotel Receptionist
Michael Hordern
Older Watson (voice)
Grant Burns
Schoolboy (uncredited)
George Lane Cooper
Acolyte (uncredited)
Salo Gardner
Chestnut Seller (uncredited)
Lew Hooper
Restaurant Patron (uncredited)
Royston Munt
Footman (uncredited)
Henry Roberts
School Master (uncredited)
Fred Wood
Patron (Lower Nile Tavern) (uncredited)