Cast
Robert Atkins
King Louis XV
Bruce Belfrage
Crown Prosecutor
Leonardo Scavino
Gaston / Beniamino Balsamo (as Leon Lenoir)
Nancy Guild
Marie Antoinette / Lorenza
Berry Kroeger
Alexandre Dumas, Sr.
Gregory Gaye
Chambord / Monk (as Gregory Gay)
Raymond Burr
Alexandre Dumas, Jr.
Ronald Adam
Court President
Stephen Bekassy
Viscount de Montagne
Tamara Shayne
Maria Balsamo
Silvana Mangano
(uncredited)
Harriet Medin
(uncredited)
Akim Tamiroff
Gitano
Frank Latimore
Gilbert de Rezel
Rosina Galli
(uncredited)
Orson Welles
Joseph Balsamo aka Count Cagliostro
Valentina Cortese
Zoraida
Milly Vitale
(uncredited)
Margot Grahame
Mme. du Barry
Tatyana Pavlova
Grieving Mother
Ludmilla Dudarova
(uncredited)