Patxi
Elena (as Elena Huercanos)
El entrenador (as Popocho Aiestaran)
Doktor Laruskain
Socorrista
El Lehendakari (as Jose Mari Clavel)
El vigilante del Acuario
Bañista
Doble pez
(as Jose Luis Saenz)
Patxi (voice) (uncredited)
Elena (voice) (uncredited)
El reportero (uncredited)
Doktor Laruskain (voice) (uncredited)