Captain Underpants

Main

• George Beard - A 9 3/4-year-old black-skinned boy with a flat top. He wears a tie.
• Harold Hutchins - A next-door-neighbor and friend of George. He is 10 years old and has a bad hair cut.
• Mr. Benny Krupp - Mr. Krupp is the mean school principal of George and Harold.
• Captain Underpants - The alter-ego of Principal Krupp. He one day got superpowers.
• Melvin Sneedly - George and Harold's smart nemesis. He wears glasses and a bow tie.
• Ms. Ribble - The fourth grade teacher of George and Harold.
• Sulu And Crackers - George and Harold's pets.
• Yesterday George and Harold Doubles of the 2 boys of the same name.

Recurring (Appearing more than once)

• Harold's sister
• Henry Hutchins - Harold's grandfather
• Jane Beard - 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 can only shout "YUM, YUM, EAT 'EM UP!" and eat people, created when George and Harold wrote it in a comic book, and fed it to a machine that makes living 3D copies of 2D drawings created by Melvin Sneedley.
• The Turbo-Toilet 2000- The leader of the talking toilets. He appeared on his own in book 11.
• Jennifer - An evil alien.
• Zorx and Klax - Jennifer's Friends. They tried to help him take over Earth.
• Professor Poopypants- A mad scientist from New Swissland that forced everyone to change their name to what the Name Change-o-Chart 2000 says. He later changed his name to Tippy Tinkletrousers.
• Wedgie Woman - Ms. Ribble after hypnosis from George and Harold.
• Evil George and Evil Harold - George and Harold's evil twins from the alternate dimension. They first met when a horrible accident with the time machine occurred.
• Captain Blunderpants - Captain Underpants' evil twin from the alternate dimension.
• Nice Mr. Krupp - The Nice Counterpart of Mr. Krupp from the alternate dimension.

Books

There are 12 books, the first one is known as The Adventures of Captain Underpants, the next one being called Captain Underpants and the Attack of the Talking Toilets.

Film

All of the Captain Underpants films are made by DreamWorks Animation.