Carlos Delargo, the banished son of a royal princess of Mandorra, is returned to the kingdom to be tried for a murder change. However, he is freed by King Lorenzo, whom bears a remarkable resemblance to Delargo. When the king is wounded by assassins sent by Napoleon, Delargo takes over the throne at the request of the Prime Minister in a plot to thwart the traitors. He also falls in love with Princess Teresa, the king's fiancée.
Anthony Dexter
as Captain Carlos Delargo / King Lorenzo
Jody Lawrance
as Princess Teresa
Gale Robbins
as Countess Flora
Anthony Quinn
as Prince Ramón
Carl Benton Reid
as Prime Minister Triano
Ron Randell
as Capt. Ruiz
Fay Roope
as Mons. De Laforce
Carleton Young
as Carnot
Ian MacDonald
as Maj. Schrock
Lester Matthews
as Dr. Lopez
Walter Kingsford
as Sultan of Morocco
Donald Randolph
as Don Felipe Castro