A hypnotist uses his powers for revenge against King Louis XV's court.
Orson Welles
as Joseph Balsamo aka Count Cagliostro
Nancy Guild
as Marie Antoinette / Lorenza
Akim Tamiroff
as Gitano
Frank Latimore
as Gilbert de Rezel
Valentina Cortese
as Zoraida
Margot Grahame
as Mme. du Barry
Stephen Bekassy
as Viscount de Montagne
Berry Kroeger
as Alexandre Dumas, Sr.
Gregory Gaye
as Chambord / Monk (as Gregory Gay)
Raymond Burr
as Alexandre Dumas, Jr.
Charles Goldner
as Dr. Franz Anton Mesmer
Lee Kresel
as King Louis XVI / Innkeeper
