Big Sir is Juan Alderete's what?
Juan Alderete Juan Alderete de la Peña (born September 5, 1963) is a Mexican-American musician, best known as the longtime bassist of Racer X and The Mars Volta.
Juan Carlos Gené Juan Carlos Gené (6 November 1929 – 31 January 2012) was an Argentine actor and playwright. He was president and secretary general of the Argentine Actors Association, managing director of Canal Siete and managing director of Teatro General San Martín.