Christopher Lee
Prof. Sir Alexander Saxton
Acting
Peter Cushing
Dr. Wells
Acting
Telly Savalas
Captain Kazan
Acting
Alberto de Mendoza
Father Pujardov
Acting
Silvia Tortosa
Countess Irina Petrovska
Acting
Julio Peña
Inspector Mirov
Acting
Ángel del Pozo
Yevtushenko
Acting
Helga Liné
Natasha
Acting
Alice Reinheart
Miss Jones
Acting
José Jaspe
Conductor Koniev
Acting
George Rigaud
Count Maryan Petrovski
Acting
Víctor Israel
Luggage Worker
Acting
Faith Clift
American Passenger, Miss Bennett (uncredited)
Acting
Juan Olaguibel
Creature
Acting
José Marco
Vorkin
Acting
José Canalejas
Russian Guard
Acting
Vicente Roca
Station Master
Acting
Hiroshi Kitatawa
Grashinski - the Locksmith (uncredited)
Acting
Barta Barri
First Telegraphist
Acting
Peter Beckman
Second Telegraphist (uncredited)
Acting
Allen Russell
Capt. O'Hagan (uncredited)
Acting
Fernando Villena
(uncredited)
Acting