Based on Alexandre Dumas's novel, 'The Vicomte of Bragellone', which is often filmed under the title of its final section, 'The Man in the Iron Mask'. This version features José Ferrer as Aramis. A later version (as The Man in the Iron Mask (1998)), featured Gérard Depardieu as Porthos. Ferrer and Depardieu have also both played Cyrano de Bergerac. Appropriately, in Edmond Rostand original play, the character D'Artagnan offers his compliments to Cyrano's poetic abilities after a duel.
Alan Hale Jr. plays Porthos, the same Musketeer played by his father Alan Hale Jr. in The Man in the Iron Mask (1939), of which this film is a direct remake (the earlier film's screenplay is credited along with the Dumas novel as source material. Furthermore, in At Sword's Point (1952), a Hollywood-concocted sequel to Dumas' novel "The Three Musketeers," Hale played the son of Porthos, while this film's D'Artagnan, Cornel Wilde, had the role of D'Artagnan's son.