Pancho Contreras is the Grouch-like character in Plaza Sésamo, the Mexican co-production of Sesame Street. He appears in the Street segments of the show, assorted inserts, and also has his own segment, "Pancho Visión". Pancho has a strong obsession with his favorite food, onions (much to the disgust to the other Plaza citizens). And much like Telly Monster, his favorite shape is the triangle. He is also a skilled cello player. An animated version of Pancho can be seen in the background of one of the safety PSA's starring Grover.