Captain Underpants

Captain Underpants is a popular series of children's books by Dav Pilkey. The books take place in Piqua, Ohio.

Characters

 * George Beard - the 9 3/4-year-old boy with a flat head. He wears a neck tie.
 * Harold Hutchins - a next-door-neighbor of George.
 * Mr. Benny Krupp - Mr. Krupp is the school principal of George and Harold
 * Captain Underpants - the alter-ego of Principal Krupp
 * Ms. Ribble - the fourth grade teacher of George and Harold
 * Melvin Sneedly - George and Harold's nemesis. he wears glasses and a bow tie
 * Heidi Hutchins - Harold's sister
 * Henry Hutchins - Harold's grandfather
 * Jane - Henry Hutchins' girlfriend and George Beard's great-grandmother
 * Ingrid Ashley and Larry Zarrow - The local TV reporters for Eyewitness News (Channel 4).

Villains

 * Dr. Diaper - an evil scientist who wears a diaper
 * The Talking Toilets- Toilets that shout "YUM, YUM, EAT 'EM UP!"and eat people, created when George and Harold wrote it in a comic book, and fed it to an animating machine created by Melvin Sneedley
 * The Turbo-Toilet 200- The master of the talking toilets.
 * Jennifer - an evil alien from Mercury
 * Zorx and Klax - Jennifer's innocent cousins. They tried helped him take over Earth.
 * Professor Poopypants- a scientist from New Swissland that forced everyone to change their name to what the Name Change-o-Cart 300 says. Later changed his name to Tippy T. Tinkletrousers.
 * Wedgie Woman - Ms. Ribble after hypnosis from George and Harold
 * Evil George and Evil Harold - George and Harold's evil twin from the alternate dimension, first met when a horrible accident with the time machine occurred
 * Captain Blunderpants - Captain Underpants' evil twin from the alternate dimension