Broderick Crawford
as
Dr. Stefan Bernardi
Bibi Andersson
as
Maria
Marcello Mastroianni
as
A revolutionary
Marcello Mastroianni
as
Un rivoluzionario
Renato Romano
as
Mandel
Orson Welles
Director
Leonardo Scavino
as
Gaston / Beniamino Balsamo
Frank Latimore
as
Gilbert de Rezel
Jean-Pierre Cassel
as
David
Micha Bayard
as
Germaine
Michelangelo Antonioni
Director
Madeleine Fischer
as
Rosetta Savoni
Ornella Muti
as
Eugenia Rutelli
Eleonora Giorgi
as
Nicola
Alida Valli
as
Héloïse
Peter Cushing
as
MacGregor
Miou-Miou
as
Marie
Mario Bava
Director
Dante DiPaolo
as
Andrea Landini
John Saxon
as
Dr. Marcello Bassi
Robert Wise
Director
Richard Basehart
as
Alan Spender
Harry Carter
as
Detective Ellis
Binnie Barnes
as
Catherine - Empress of Russia
Walter Rilla
as
Prince Radziwill
José María Prada
as
Juan
Mario Bava
Director
Rosita Pisano
as
Maid
Barbara Steele
as
Princess Asa Vajda / Katia Vajda