The Principal and the Pauper

Heroes

 * Seymour Skinner
 * Homer Simpson
 * Bart Simpson
 * Lisa Simpson
 * Marge Simpson
 * Maggie Simpson
 * Edna Krabappel
 * Agnes Skinner
 * Abraham Simpson
 * Elizabeth Hoover
 * Ralph Wiggum
 * Groundskeeper Willie
 * Jasper Beardly
 * Becky
 * Gary Chalmers
 * Ned Flanders
 * Bernice Hibbert
 * Joe Quimby

Villains

 * The True Seymour Skinner