Producer: Antonio Arias - Artist: Lagartija Nick - Producer: Pablo Sanchez - Voice: Antonio Arias - Bass Guitar: Antonio Arias - Guitar: Juan Codorniu - Guitar: Miguel Angel Rodriguez - Drums: David Fernández - Keyboards: Juan José Machuca - Mastering Engineer: Juan Hidalgo - Recording Engineer: Pablo Sanchez - Voice: Juan Pinilla - Voice: Víctor Blaya Quero