A monster from an unknown species, Don Pimpón had been living at the Barrio Sésamo for some time when Espinete moved there in 1983. Other people in the Barrio do not seem to consider Pimpón strange, although he is a large, brown-furred monster, strong enough to break a (paper) wall when simply leaning on it. Don Pimpón behaves as an adult, becoming one of the father figures for Espinete. Some consider that Don Pimpón feels a certain amount of rejection by human characters and can relate more easily to another Muppet; however, everybody thought of Don Pimpón as "one of us."