Guest Stars Lucas Velasco as Mario Aitor Beltrán as Francisco "Fran" Pastor Kandido Uranga as Prior Arturo Lago Joseba Usabiaga as Luis Patxi Santamaría as Pelayo Ledesma Clara Galle as Eva Merino Irene Anula as Patricia Brun Co Starring Aurora Martinez voices Megafonías Internado Ethan Cajigas as El Tripi Valeria Muriel voices Voz Cabecera Borja Organista as Alumno 3 Sergio Ferreras as Alumno 4 Daniel Puente as Alumno 5 Wanda García Baños as Alumna 3 Mikele Arizkorreta as Alumna 2 Ana Lucas as Alumna 1 Juan de la Cruz Lorente Jara as Doctor Laboratorio Toni Gonzalez as Fraile 1 Carlos Apolinario as Fraile 2 Javier Barandiaran as Cazador