Christopher Lee
Grigori Rasputin
Barbara Shelley
Sonia
Richard Pasco
Dr. Zargo
Francis Matthews
Ivan
Suzan Farmer
Vanessa
Dinsdale Landen
Peter
Renée Asherson
Tsarina
Derek Francis
Innkeeper
Joss Ackland
The Bishop
Robert Duncan
Tsarvitch
Alan Tilvern
Patron
John Welsh
The Abbot
John Bailey
The Physician
Prudence Hyman
Chatty Woman (uncredited)
Lucy Fleming
Wide Eyes (uncredited)
Michael Ripper
Waggoner (voice) (uncredited)
Michael Godfrey
Doctor (uncredited)
Bryan Marshall
Vasily (uncredited)
Maggie Wright
Second Tart (uncredited)
Cyril Shaps
Foxy Face (uncredited)
Brian Wilde
Vassily's Father (uncredited)