Young Sherlock Holmes

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)