Orson WellesJoseph Balsamo aka Count Cagliostro / Co-Director Nancy GuildMarie Antoinette / Lorenza Frank LatimoreGilbert de Rezel Margot GrahameMme. du Barry Stephen BekassyViscount de Montagne Berry KroegerAlexandre Dumas, Sr. Gregory GayeChambord / Monk (as Gregory Gay) Raymond BurrAlexandre Dumas, Jr. Charles GoldnerDr. Franz Anton Mesmer Lee KreselKing Louis XVI / Innkeeper Robert AtkinsKing Louis XV Annielo MeleJoseph Balsamo as a Child Ronald AdamCourt President Bruce BelfrageCrown Prosecutor Alexander DanaroffDr. Duval / Baron von Minden Leonardo ScavinoGaston / Beniamino Balsamo (as Leon Lenoir) Tamara ShayneMaria Balsamo Joop van HulzenMinister of Justice Peter TrentDr. Mesmer's Friend Tatyana PavlovaGrieving Mother Harriet Medin(uncredited) Valentino Bruchi(uncredited) Ludmilla Dudarova(uncredited) Silvana Mangano(uncredited) Filippo Minelli(uncredited) Michele Sakara(uncredited) Nicholas Soussanin(uncredited) Gregory Ratoff監督 / プロデューサー Dario Sabatelloアソシエイトプロデューサー Edward Smallエグゼクティブプロデューサー Ottavio ScottiArt Direction Jean d'EaubonneArt Direction Gino BrosioSet Decoration Ubaldo ArataDirector Of Photography Anchise BrizziDirector Of Photography Otello MartelliDirector Of Photography Georges AnnenkovCostume Design Vittorio Nino NovareseCostume Design Orson WellesJoseph Balsamo aka Count Cagliostro / Co-Director 
