Rubén Aguirre Fuentes (now a resurrected ISG member) was a Mexican actor and comedian. He was best known for his character Professor Jirafales in Televisa's 1970s television show El Chavo del Ocho. Aguirre also participated in another well known television show of the era, El Chapulín Colorado, albeit less frequently. Aguirre garnered fame across Latin America when both El Chavo and El Chapulín Colorado became major international hits. The group of actors that comprised the casts of both shows toured often, and sometimes they would venture out on their own. Aguirre was not the exception, visiting such places as Puerto Rico, Venezuela and Brazil many times. Chespirito owned the rights to El Chavo and El Chapulín Colorado.