A criminal produces an uncontrollable laughter to the population and Mortadelo and Filemón will have to stop him.
as Mortadelo / Tía Fulgencia (voice)
as Filemón (voice)
as Jimmy el Cachondo (voice)
as Filemón en sueños (voice)
as El Súper (voice)
as Tronchamulas reversizado (voice)
as Tronchamulas (voice)
as Rompetechos (voice)
as El Profesor Bacterio (voice)
as Ofelia (voice)
as Señorita Irma (voice)
as Mari (voice)
as Trini (voice)
as Guardia / Niño 2 (voice)
as Vecina Filemón / Niño 3 (voice)
as Cocinero TV (voice)
as Instalador caja fuerte / Voz sobre el periódico (voice)
as Ciego / Yoyolanda reversizada (voice)
as Yoyolanda / Reportera noticiaria TV (voice)
as Bicho 1 / Pingüino (voice)