cast
-
Orson Welles
Joseph Balsamo aka Count Cagliostro
-
Nancy Guild
Marie Antoinette / Lorenza
-
Akim Tamiroff
Gitano
-
Frank Latimore
Gilbert de Rezel
-
Valentina Cortese
Zoraida
-
Margot Grahame
Mme. du Barry
-
Stephen Bekassy
Viscount de Montagne
-
Berry Kroeger
Alexandre Dumas, Sr.
-
Gregory Gaye
Chambord / Monk (as Gregory Gay)
-
Raymond Burr
Alexandre Dumas, Jr.
-
Charles Goldner
Dr. Franz Anton Mesmer
- Lee Kresel King Louis XVI / Innkeeper
-
Robert Atkins
King Louis XV
- Nicholas Bruce De Remy
- Franco Corsaro Chico
- Annielo Mele Joseph Balsamo as a Child
-
Ronald Adam
Court President
-
Bruce Belfrage
Crown Prosecutor
- Alexander Danaroff Dr. Duval / Baron von Minden
-
Leonardo Scavino
Gaston / Beniamino Balsamo (as Leon Lenoir)
-
Tamara Shayne
Maria Balsamo
- Joop van Hulzen Minister of Justice
- Peter Trent Dr. Mesmer's Friend
- Giuseppe Varni Boehmer
-
Tatyana Pavlova
Grieving Mother
-
Harriet Medin
(uncredited)
- Valentino Bruchi (uncredited)
-
Ludmilla Dudarova
(uncredited)
-
Rosina Galli
(uncredited)
-
Silvana Mangano
(uncredited)
- Filippo Minelli (uncredited)
- Michele Sakara (uncredited)
- Nicholas Soussanin (uncredited)
-
Milly Vitale
(uncredited)