The Simpsons

The Simpsons are the stars of the long-running animated series of the same name. The family, including Homer Simpson (voiced by Dan Castellaneta), Marge (Julie Kavner), Bart (Nancy Cartwright), and Lisa (yeardley Smith) appeared in the celebrity version of the Sesame Street song sketch Monster in the Mirror.

The TV series Dinosaurs was often likened to The Simpsons, particularly Earl Sinclair's similarities to Homer Simpson, and The Simpsons series itself spoofed the show, and has also had cartoon versions of Miss Piggy and Elmo appear on the show (sans their original voices).