Elenco (na ordem dos créditos)
Anthony Holles
Vladimir Stroganoff
David March
Little Igor
Bryan Matheson
Stanley
Donald Sinden
Inspector Adam Quill
Victor Platt
Sergeant Banner
MacGregor Urquhart
Police Surgeon
John Vere
Doctor James
Boris Ranevsky
Puthyk
Roger Snowdon
Pavlov
Leo de Pokorny
Serge
Winifred Evans
Madame Rubinskaya
Pamela Foster
Iriha
Evel Burns
Pianist
Nelly Arno
Arenskaya
Paul Hansard
Kasha
Wilfred Fletcher
Assistant Commissioner of Police
David Ward
Nevajno
Clement Hamelin
Coroner
Ann Lancaster
Box-office girl
Mark Baring
ATOR
Ernest Berk
Joan Berly
Anne Blake
Sonya Hana
Margaret Maxwell
Kenneth Osbourne