Voice: Sílvia Pérez Cruz - Recording Engineer: Juan Casanovas - Editor: Sílvia Pérez Cruz - Editor: Juan Casanovas - Mixer: Sílvia Pérez Cruz - Mixer: Juan Casanovas - Producer: Sílvia Pérez Cruz - Mastering Engineer: Stephen Marcussen - Violin: Carlos Montfort - Sound Effects: Carlos Gárate - Sound Effects: Juan Casanovas - Video Director: Isaki Lacuesta - Video Producer: El Pez Cruz, S.L. - Video Producer: La Termita Films