Captain Underpants: Characters
Best friends with Harold Hutchins, George Beard is a silly, prank loving 4th grader. As each book opens, he is characterized by his signature tie and flat top hair cut. Together with Harold, George starts a comic book company featuring the adventures of Captain Underpants. George is the writer. The boys sell copies of the comics on the playground when the teachers are not looking. George is described as being mostly good, but with a tendency to get into trouble. His biggest adversary is Principal Krupp.
Best friends with George Beard, Harold is the other half of the fourth grade prank loving duo. As each book opens, he is characterized with a t-shirt and a bad haircut. Together the with George, Harold starts a comic book company featuring the adventure of Captain Underpants. Harold is the illustrator. When the teachers aren’t looking, Harold sells copies of the comic on the playground with George. Like George, Harold is described as being mostly good, but with a tendency to get into trouble. His biggest enemy is Principal Krupp.
Principal Krupp/Captain Underpants
Principal Krupp is the child-hating principal of Jerome Horwitz Elementary. He is George and Harold’s biggest antagonist throughout the series. Principal Krupp discourages fun and imagination whenever possible. He is identified as being extremely obese. Principal Krupp spends most of his time trying to catch George and Harold in the act and punish them for their wild troublemaking antics. In the first book of the series, the boys hypnotize Principal Krupp to get out of a punishment, and he is transformed into his alter ego Captain Underpants. The boys are unable to fully return him back to normal, and, as a result, he turns into Captain Underpants every time someone snaps their fingers. In contrast to Principal Krupp, Captain Underpants is kind to everyone. In the ninth book of the series, we discover that although Principal Krupp does not know Captain Underpants is his alter ego, he does have knowledge of his existence.
Introduced in the first book of the series, Dr. Diaper is an evil villain with plans to take over the world. His plan is to create mayhem and chaos by blowing up the moon with the Lasermatic 2000 causing shattered pieces to tumble down on all the major cities of the world. Dr. Diaper is the main villain of the first book, but also makes a short appearance in book four, where he meets Professor Poopypants in jail and makes a joke out of his name. Dr. Diaper achieves his goal of blowing up the moon when Professor Poopypants changes history, but is eventually eaten by the Talking Toilets. Poopypants eventually restores history, reversing the outcome.
Dr. Diaper’s Evil Robots
Secondary villains created by Dr. Diaper, the evil robots aid him in his mission to take over the world. The robots appeared in the first book, where Dr. Diaper ordered them to steal a diamond to provide power to the Lasermatic 2000. The robots also succeed in kidnapping Principal Krupp as Captain Underpants. Harold and George must defeat the robots in order to save the world. The boys succeed in destroying the robots by the end of the first book.
First appearing in Captain Underpants and the Attack of the Talking Toilets, Melvin Sneedly is known as the nerdy school brainiac, who also happens to be a mechanical genius. He is known for being a tattletale and because of this becomes George and Harold’s enemy. Melvin Sneedly is characterized by his glasses and bow tie. He is a recurring character throughout the series. In the second book, Melvin’s invention of the Patsy 2000 sends the boys on a mistaken adventure. In book four, he is given the funny name, Pinky Pizzabrains. After accidentally turning himself into the Bionic Booger boy, he becomes the major villain in the sixth book. Melvin makes an appearance in the end of book 7 when he is chased for causing trouble. He also makes short appearances in books nine and ten, updating the reader on his fate.
Turbo Toilet 2000 and the Army of Talking Toilets
Turbo Toilet 2000 and the Army of Talking Toilets are characters created by George and Harold in their comics. They are mistakenly brought to life when the boys use Melvin Sneedly’s Patsy 2000 as a photocopier in the second book. Turbo Toilet 2000 is the main villain of book two as he plans to take over the world, but first must set out to destroy Captain Underpants. However, he is flown to Uranus when he is defeated. The sharp toothed Army of Talking Toilets aid Turbo Toilet 2000 in his mission to take over the world. They succeed in eating all the teachers in the school, but vomit them up unharmed after eating cafeteria food and proceeding to die. The characters are mentioned again in book seven when talking toilets are discovered on Uranus.
Sulu and Crackers
George and Harold’s pets. Sulu is a bionic pet hamster abandoned by Melvin Sneedly and adopted by George and Harold in The Big, Bad Battle of the Bionic Booger Boy, Part 1. Crackers is a Quetzalcoatlus that time traveled back with Melvin in his time machine in The Big, Bad Battle of the Bionic Booger Boy, Part 2. Sulu and Crackers were hypnotized shortly by Evil George and Evil Harold, and Sulu became a villain briefly. Crackers, a female, was not affected because the hypnosis was unable to affect females in the same way as males. George and Harold took the pets with them on their time traveling adventures during their battles with Tippy Tinkletrousers. When the boys are sent back in time to the creation of the universe, the pets are assumed to be destroyed with the explosion of the “Big Ka-Sploosh”.
Zorx, Klax and Jennifer
Three aliens from space, Zorx, Klax and Jennifer are the main villains of the third book. They are characterized as having a snake’s face, a frog’s head, the body of a slug, and octopus tentacles. Before being destroyed in a UFO explosion, they plot to take over the world with a giant army of zombies created from the school’s teachers and students. When Tippy Tinkletrousers changes history, their fate is reversed, but it is eventually restored.
The Dandelion of Doom
The secondary villain of the third book, the Dandelion of Doom was an ordinary dandelion that drank rapid growth alien juice and turned into a giant, monstrous dandelion. To destroy the Dandelion of Doom, Captain Underpants must drink alien superpower juice. After drinking the juice, Captain Underpants gains real superpowers.
Professor Pippy Pee-Pee Poopypants
Originally from a culture where everyone has a silly name, Professor Pippy Pee-Pee Poopypants finds himself teaching science at George and Harold’s school when no universities will take him seriously because of his name. After continuing to be ridiculed for his ridiculous name, Professor Pippy Pee-Pee Poopypants is driven insane and develops a plot to give everyone in the world a silly name. He becomes the main villain of the fourth book. He is ultimately defeated by Captain Underpants. Harold and George convince him to change his name to Tippy Tinkletrousers. He returns in book nine, wanting revenge for his new name that continues to cause him to be ridiculed. He blames the silliness on George and Harold. In book nine, he goes back in time and changes history to prevent Captain Underpants from being created. He fakes his own death before he can restore history to its original form. Tippy Tinkletrouser returns once again in book ten and proceeds to travel back in time to prevent himself from changing history. He battles Harold and George and eventually creates three versions of himself that each meet their death before the end of the book.
The main villain in the fifth book, George and Harold created Wedgie Woman to resemble their teacher Ms. Ribble. Ms. Ribble transforms into Wedgie Woman after Harold and George once again utilize their 3D hypno-ring. When Wedgie Woman’s hair is doused with superpower juice, she gains super-intelligence. She creates robots to resemble Georg and Harold and names them Robo-George and Harold 2000. They set out to destroy Captain Underpants, but are eventually defeated. George and Harold are able to successfully transform her back to normal by the end of the book, with one exception. Instead of the evil teacher, she once was, she becomes kind and bakes cookies for everyone.
Captain Underpant’s nemesis and the opposite of him in every way, Captain Blunderpants devises a plan to destroy the world and defeat Captain Underpants in book eight. Captain Blunderpants is described as looking just like Mr. Krupp complete with a toupee. He also acts like Mr. Krupp when transformed. Evil Captain Blunderpants appears when someone snaps their fingers, and when the transformation is reversed he become a nicer version of Mr. Krupp. He is eventually defeated by George’s great-grandmother and Harold’s grandfather, Great Granny Girdle and Boxer Boy.
Evil George and Evil Harold
Evil versions of George and Harold appear in book eight and are the creators and accomplices of Captain Blunderpants. From another universe, Evil George and Evil Harold consider themselves superior writers and illustrators to George and Harold. They are the complete opposites of Harold and George. Eventually, the real Harold and George defeat them and send them back to their alternate universe.
Mr. Krupp’s nephew, Kipper Krupp, appears in book nine Captain Underpants and the Terrifying Re-turn of Tippy Tinkletrousers. He is a sixth grader who bullied George and Harold when they were in Kindergarten. George and Harold convince him he is being haunted by a ghost, which gives Kipper a change of heart, and he decided to be kind to others. Tippy Tinkle Trousers changes history and drives Kipper insane by presenting a robot that looks like a ghost. He is taken to Piqua Valley Home for the Reality Challenged. Eventually, reality is restored, and the outcome is reversed.