Full Credits
45 members

Mel Ferrer
Stephen Orlac

Christopher Lee
Nero the magician

Dany Carrel
Régina / Li-Lang

Lucile Saint-Simon
Louise Cochrane Orlac

Felix Aylmer
Dr. Francis Cochrane

Peter Reynolds
Mr. Felix

Basil Sydney
Maurice Seidelman

Campbell Singer
Inspector Henderson

Donald Wolfit
Professor Volchett

Donald Pleasence
Graham Coates
Peter Bennett
1st Member

George Merritt
2nd Member

Arnold Diamond
Dresser

Janina Faye
Child
Gertan Klauber
Fairground attendant
Walter Randall
Waiter
Yanilou
Emilie

David Peel
Pilot

Anita Sharp-Bolster
Volcheff's Assistant

Edouard Hemme
Ange
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)
16 members
Edmond T. Gréville
Director
Edmond T. Gréville
Writer
John Baines
Writer
Maurice Renard
Novel
Edmond T. Gréville
Dialogue
Donald Taylor
Dialogue
Steven Pallos
Producer
Donald Taylor
Producer
Desmond Dickinson
Director of Photography
Jacques Lemare
Director of Photography
Claude Bolling
Original Music Composer
Eugène Piérac
Production Design
John Blezard
Art Direction
Rebecca Breed
Wardrobe Master
Oswald Hafenrichter
Editor
Jean Ravel
Editor