Christopher Lee
Nero the magician
Dany Carrel
Régina / Li-Lang
Lucile Saint-Simon
Louise Cochrane Orlac
Felix Aylmer
Dr. Francis Cochrane
Basil Sydney
Maurice Seidelman
Campbell Singer
Inspector Henderson
Donald Wolfit
Professor Volchett
Donald Pleasence
Graham Coates
Gertan Klauber
Fairground attendant
Anita Sharp-Bolster
Volcheff's Assistant
Mireille Perrey
Madame Aliberti
Manning Wilson
Inspector Jagger
Franca Bellj
Cell Whore (uncredited)
Peter Bennett
1st Member (uncredited)
Ernest Blyth
Nightclub Audience (uncredited)
Fred Davis
Detective (uncredited)
Arthur Dibbs
Nightclub Audience Member (uncredited)
Pierre Ferrari
Ambulance Attendant (uncredited)
Jean Fountaine
French Waiter (uncredited)
Charles Gilliard
Detective (uncredited)
Victor Harrington
Nightclub Audience (uncredited)
Juba Kennerley
Nightclub Audience (uncredited)
Aileen Lewis
Nightclub Audience (uncredited)
Pat Lewis
Nurse (uncredited)
George Merritt
2nd Member (uncredited)
John More
Concert Audience (uncredited)
Richard Neller
Surgeon in Clinic Hallway / Concert Audience (uncredited)
Terry Sartain
Man in Clinic Hallway (uncredited)
John Smart
Nightclub Audience (uncredited)
Emile Stemmler
Nightclub Waiter (uncredited)
Philip Stewart
Nightclub Audience (uncredited)
Fred Stroud
Concert Audience (uncredited)
John Tatham
Concert Audience (uncredited)
John Timberlake
Club Barman (uncredited)
Johnny Wyne
Nightclub Audience (uncredited)
