Lisa Simpson's Guide to Geek Chic/Appearances
Wikisimpsons - The Simpsons Wiki
Characters
George Boole (mentioned)
Lewis Clark (as a Guinea Pig)
The Crickets (mentioned)
Rod Flanders (as a Parrot)
Todd Flanders (as a Lamb)
Freddy (as a Wolf)
Horatio (mentioned)
Hedy Lamarr (mentioned)
Bleeding Gums Murphy (picture)
Opus the Penguin (mentioned)
Francine Rhenquist (as a Bull)
Mark Russell (mentioned)
Carl Sagan (mentioned)
Homer Simpson (as a Sloth)
Allison Taylor (as a Fox)
Alex Whitney (as a Peacock)