Cantinflas and three friends return a stolen necklace to an actress who invites them to be extras at Clasa studios. While on the set, he falls asleep and dreams that he is d'Artagnan, fighting on behalf of Queen Anne.
Cantinflas
as Cantinflas / D'Artagnan (as Mario Moreno 'Cantinflas')
Ángel Garasa
as Ricardo / Cardenal Richelieu
Janet Alcoriza
as Mimí / Milady (as Raquel Rojas)
Consuelo Frank
as Reina / Ana de Austria
Pituka de Foronda
as Constancia / Sra. Bonacieux
Andrés Soler
as Athos
Julio Villarreal
as Rey Luis XIII
Jorge Reyes
as Julio / Duque de Buckingham
José Elías Moreno
as Portos
Rafael Icardo
as Comisario / Sr. de Treville
Estanislao Schillinsky
as Aramis (as E. Schillinsky)
Antonio Bravo
as Rocha / Rochefort
