Joan Guillén has designed sets, costumes, masks, and props for opera and theater. During the 2025-26 season at HGO, Guillén serves as the set and costume designer for The Barber of Seville. Previously for the company, he served as set and costume designer for Cinderella (2024, 2007), which was also staged at La Monnaie in Brussels, Grand Théâtre de Genève, Gran Teatre del Liceu in Barcelona, Welsh National Opera, Seattle Opera, Los Angeles Opera, Opera Omaha, Washington National Opera, and Lyric Opera of Chicago. This production of The Barber of Seville (2018, 2011) was seen at the Grand Théâtre de Bordeaux, Gran Teatre del Liceu, and Canadian Opera Company; The Italian Girl in Algiers (2012) was also seen at Teatro Real in Madrid, Teatro Comunale of Florence, the Grand Théâtre de Bordeaux, and Teatre de les Arts in Valencia. Another important production was Faust-Bal at Madrid’s Teatro Real. Guillén has done extensive work in the arts as a painter, sculptor, and cartoonist. He has taught at the School of Dramatic Art at Barcelona’s Theatre Institute for many years, in addition to serving as a visiting professor at schools and universities around the world. The most recent of his many honors was the 2016 National Culture Prize, awarded by the Catalan National Council of Culture and the Arts. Other awards include the gold medal for costume design at the 1999 Prague Quadrennial of Performance Design and Space, the world’s largest exhibition in the field of set design and theater architecture.