Mario Gas (Montevideo, 1947) is one of the great names of the Catalan scene. Since his debut – he counts at 18 years old, with the direction of Asalto nocturno (1965), although he had been acting since he was eight – he must have directed nearly 150 productions. He has been an actor, director, voice actor, set designer, lighting designer, and creator of mythical shows, such as Sweeney Todd and The Beauty Queen of Leenane. At almost 80 years old, he continues to be combative and fighting from the theatre. Until June 28th he is performing the autobiographical cabaret at La FàbricaLa lluna és blanca, muy blanca… and has just published a memoir, Conversaciones con Mario Gas (Fundamentos), written by Santi Fondevila and Teresa Petit. With him, we review fifty years of our theatre.