David Hemmings

Benjamin Oakes / Walter Leybourne

Joanna Pettet

Josephine Pacefoot

George Sanders

Sir Francis Leybourne

Dany Robin

Babette

Warren Mitchell

Count Pandolfo

John Bird

Home Secretary

William Rushton

Sylvester Wall

Bill Fraser

Inspector MacPherson

John Cleese

Jones

Avril Angers

Flora's Mother

Maurice Denham

Editor, The Times

Martita Hunt

Headmistress

Veronica Carlson

Lily

Betty Marsden

Felicity

Peter Jeffrey

Sherlock Holmes

Thorley Walters

Doctor Watson

Penny Spencer

Evelyn

Hugh Burden

Lord Tennyson

Arnold Diamond

Charles Dickens

Tessie O'Shea

Music Hall Singer

Queenie Watts

Old Crone

Margaret Nolan

Busty Prostitute

Milton Reid

Henchman

Clement Freud

Mr Mason

Carol Friday

Flora

Ferdy Mayne

Eric Barker

Joe Lynch

William Mervyn

Charles Lloyd Pack

Jessie Robins

Marianne Stone

Queenie Watts

Jan Holden

Lady Dilke

Roy Beck

Times Newspaper Reporter (uncredited)