Special Guest Stars Ramón Agirre as Fray Cecilio Guest Stars Aitor Beltrán as Francisco "Fran" Pastor Kandido Uranga as Prior Arturo Lago Alberto Berzal as Fray Salvador Zigor Bilbao as Ismael Mia Lardner as Martina Nagore Aranburu as Sofía Iñaki Ardanaz as Inspector López Co Starring Aurora Martinez voices Megafonías Internado Ethan Cajigas as El Tripi Unai Martin as Ansias Juan Viadas as Fray Vicente Carles Arquimbau as Fray Jeremías Ignacio Rosado as Fray Basiano Vega Iguarán García as Bibliotecaria