King Louis XIII of France is thrilled to have born to him a son - an heir to the throne. But when the queen delivers a twin, Cardinal Richelieu sees the second son as a potential for revolution, and has him sent off to Spain to be raised in secret to ensure a peaceful future for France. Alas, keeping the secret means sending Constance, lover of D'Artagnan, off to a convent. D'Artagnan hears of this and rallies the Musketeers in a bid to rescue her. Unfortunately, Richelieu out-smarts the Musketeers and banishes them forever.
Douglas Fairbanks
as D'Artagnan
Belle Bennett
as The Queen Mother, Anne of Austria
Marguerite De La Motte
as Constance Bonacieux
Dorothy Revier
as Milady de Winter
Vera Lewis
as Madame Peronne
Rolfe Sedan
as Louis XIII
William Bakewell
as Louis XIV / Twin Brother
Nigel De Brulier
as Cardinal Richelieu
Lon Poff
as Father Joseph
Charles Stevens
as Planchet - D'Artagnan's Servant
Henry Otto
as The King's Valet
Léon Bary
as Athos
