Calificación
Reparto

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