Paul Muni
— Benito Pablo Juárez
Bette Davis
— Empress Carlotta von Hapsburg
Brian Aherne
— Emperor Maximilian von Hapsburg
Claude Rains
— Emperor Louis Napoleon III
John Garfield
— General Porfirio Diaz
Donald Crisp
— Maréchal Bazaine
Joseph Calleia
— Alejandro Uradi
Gale Sondergaard
— Empress Eugenie
Gilbert Roland
— Colonel Miguel Lopez
Henry O'Neill
— General Miguel Miramon
Harry Davenport
— Dr. Samuel Basch
Louis Calhern
— LeMarc
Walter Kingsford
— Prince Richard Metternich
Georgia Caine
— Lady in Waiting
Montagu Love
— Jose de Montares
John Miljan
— Mariano Escobedo
Vladimir Sokoloff
— Camilo
Irving Pichel
— General Carbajal
Pedro de Cordoba
— Riva Palacio
Monte Blue
— Lerdo de Tajada
Manuel Díaz
— Pepe
Hugh Sothern
— John Bigelow
Mickey Kuhn
— Augustin Iturbide
Billy Wilkerson
— Tomas Mejia
Martín Garralaga
— Negroni
Frank Lackteen
— Coachman
Egon Brecher
— Baron von Magnus (uncredited)
Gennaro Curci
— Señor de Leon (uncredited)
Carlos De Valdez
— Tailor (uncredited)
Claudia Dell
— Agnes Salm (uncredited)