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