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

Edmond T. Gréville