Osvaldo, el Gruñón

thumb|300px|right thumb|300px|right  Osvaldo, el Gruñón  ( Oswald the Grouch ) is Oscar the Grouch 's Puerto Rican counterpart. He 1st appeared in season 11 of Sesame Street, & then in subsequent seasons on the show. In his latest appearance, in the 1990s, he was performed by Peter Linz.

The Osvaldo puppet has the ability to move his eyes, & also appears as a background Grouch, sans nose.