Hiya, class! I'm your cool new teacher! Not some scary guy with a secret evil agenda!
~ Professor Poopypants

Tippy Tinkletrousers, formerly known as Professor Pippy P. Poopypants (Pee Pee Diarrheastein Poopypants Esquire in the film) is a recurring antagonist in the Captain Underpants book series, and the main antagonist of DreamWorks's 35th full-length animated feature film, Captain Underpants: The First Epic Movie.

In the film adaptation, he was voiced by Nick Kroll, who also voiced Douche.



Book series

Poopypants first appeared in the fourth novel The Perilous Plot of Poopypants, where he was a brilliant inventor and scientist hailing from the country of New Swissland (where it is tradition for everyone to have a silly name, hence the professor's name), he travels to the United States with the goal of using a pair of inventions of his to reduce the world's garbage supply and increase the world's food supply. However, on account of his ridiculous name, no one takes him seriously.

Having had no luck with his inventions, Professor Poopypants takes a job at Jerome Horwitz Elementary School (ran by Mr. Krupp) as the new science teacher in hopes that the children would be kind, sweet, and warmhearted. However, this proves false as the students all laugh at his name, paying no attention in class. This goes on for weeks, driving the Professor to the brink of insanity.

He finally snaps when he reads a comic book written by George Beard and Harold Hutchins (the two main protagonists of the book series) further making fun of him. Using an enlarged version of his Gerbil Jogger 2000 invention, he holds the school hostage and shrinks them using his shrinking device, then makes them change their names to a silly name lest he shrink them down to nothing.

George and Harold (now Fluffy and Cheeseball) get Captain Underpants (now Buttercup Chickenfanny, but Captain Underpants didn't change his name and said he'd take orders from no one) to steal Professor Poopypants' enlarging machine, but unfortunately, he and the machine are shrunk in the process.

The two of them try to enlarge the school back to normal size, but get flicked off the school. Cheeseball makes a paper airplane that Fluffy enlarges. The plane flies into many threats, yet Captain Underpants rescues them and they end up in an abandoned alley. Fluffy tries to enlarge Captain Underpants (accidentally enlarging Cheeseball's right hand) to the size of Professor Poopypants' gerbil machine. Captain Underpants then fights and defeats Professor Poopypants. Once Professor Poopypants is defeated, everyone gets their names back. The boys use the shrinking and enlarging machines to get the school and Captain Underpants back to normal size. Then Captain Underpants gets soaked with water, turning back to Mr. Krupp.

Professor Poopypants is hauled off to jail. On the advice of George and Harold, he changes his name so no one will make fun of it anymore. Unfortunately for him, he chooses his maternal grandfather's name, Tippy Tinkletrousers, which his fellow inmates make fun of, much to his anger.

Tippy returns at the end of the eighth book Captain Underpants and the Preposterous Plight of the Purple-Potty People, where he is bent on revenge against George and Harold his mockery of his new name.

Tippy serves as the main antagonist of the ninth book (Captain Underpants and the Terrifying Return of Tippy Tinkletrousers) and the tenth book (Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers), where he is bent on taking over the world using a time machine he created and a bomb to wipe out all life on the planet, though this only created a paradox that he couldn't escape. At the end of the tenth book, Tippy gets sent to the age of the dinosaurs with the bomb, which then explodes, killing Tippy and all the dinosaurs followed by two alternate versions of him both freezing to death after creating an Ice Age and getting molecularly destroyed alongside Crackers and Sulu, two allies of George and Harold, when he tried to destroy the Earth in vengeance.

Tippy is (arguably) the most evil villain of the series and Captain Underpants' arch-nemesis, judging by his actions of taking over the world and destroying life.

Film Version

Poopypants reappears in the film as the main antagonist.

As revealed in a flashback, Poopypants was once an esteemed scientist who, at a Nobel Prize ceremony, unveiled a ray that could alter the sizes of anything it hits. However, all the attendees mocked his name, causing him to descend into villainy.

At the start of the film, he visits Jerome Horwitz Elementary in the hopes of being hired as the new science teacher. Captain Underpants (under his Mr. Krupp disguise) happily hires him because of his lack of common sense, as Poopypants is clearly insane (as well as unqualified for the job, as even Poopypants himself bluntly admits).

Using the name "Professor P." to avoid ridicule, Poopypants attempts to fit in with the students while teaching them his goals of ridding the world of humor. His problems soon resurface, though, when George and Harold discover Poopypants's name and mock it throughout the school.

Having enough of the mockery, Poopypants plots to take over the town, and recruits the local tattletale Melvin Sneedly to his cause after seeing that his brain has literally no sense of humor. Poopypants is also astounded to hear that Melvin has previously built a brilliant invention known as the Turbo Toilet 2000. With that in mind, Poopypants uses his technology to make the Turbo Toilet 2000 grow in size and uses wasted leftovers as fuel for the robot. He then uses Melvin's brain as a source to turn all of the school's students and staff into mindless zombies.

When Captain Underpants tries to stop Poopypants, the latter gets the Turbo Toilet 2000 to swallow Captain Underpants whole before capturing George and Harold, intending to turn them into mindless zombies to finalize his plan. George and Harold then apologize to Poopypants for laughing at his name, and they admit he has the greatest name ever. But Poopypants still stubbornly states his name is unfunny. George then tells Poopypants that his problem isn't that people laugh at him, it's that he can't laugh at himself. Still not convinced, Poopypants proceeds his plan. After he finally manages to corrupt George and Harold, he launches into a speech about his goals to conquer the entire universe. However, when he mentions Uranus, the very thing that sparked the boys' friendship, the duo regains their sense of humor, crashing the Turbo-Toilet's computer and freeing everyone from Poopypants' control. Following Melvin's defeat, Poopypants angrily attempts to shrink both George and Harold in revenge for foiling his plans, but Captain Underpants comes to the rescue, having escaped from the Turbo Toilet 2000's mouth by consuming the leftovers to gain superpowers. Captain Underpants then proceeds to defeat Poopypants and shrink him down. Defeated, Poopypants retreated by riding on a bee, only to be flicked away by Captain Underpants. His fate afterwards is unknown.




  • Professor Poopypants is notable for being the first villain in the series who had a motivation to turn evil and take over the world; previous antagonists such as Dr. Diaper and the Turbo Toilet 2000 just came out of no where and wanted to commit world domination for no particular given reason.
    • Interestingly, in the film, Poopypants uses the Turbo Toilet 2000 as a weapon.
  • In the film, Poopypants is already a villain from the start, as opposed to being a well-meaning scientist who jumped off the slippery slope upon being mocked. His backstory reveals he had already snapped when the presenters at the World's Greatest Inventor award ceremony were too busy laughing at his name to give him his well-deserved award. The school's mockery just further angers him, and he quickly takes the school hostage.
  • According to his resume in the film:
    • He was born on April 1, 1953 (making him 64 years old, assuming the film is set after April 1, 2017).
    • He lives on 3.14 Smartypants Boulevard.
    • He has no phone.
    • He once worked in a very dark place, where his job was a revenge seeker.
    • His email is
    • His qualifications include being a genius, super smart, intelligent, über smart, not great with children, and holding grudges.
      • Curiously, despite his full name in the film being Pee Pee Diarrheastein Poopypants Esquire, the resume still lists his full name as Pippy P. Poopypants. However, this could be because the filmmakers were originally going to use his book name, but changed it to make his full name as atrocious as possible.
  • Poopypants is arguably (because of his actions) the most darkest and most evil Captain Underpants villain in the whole series.
  • Poopypants is similar to Dr. Eggman: They are balding mad scientists who seek world domination, and rely on their inventions to help them succeed.
           DreamWorks Villains

Animated Features
General Mandible | Colonel Cutter | Pharaoh Rameses | Pharaoh Seti I | Hotep & Huy | Tzekel-Kan | Hernán Cortés | Lord Farquaad | Thelonious | The Colonel | Eris | Cetus | Roc | Fairy Godmother | Prince Charming | Don Lino | Lola | Frankie | Luca | Fossas | Nana | Vincent | Gladys Sharp | Dwayne LaFontant | Rapunzel | Trees | Layton T. Montgomery | Ken | Tai Lung | Makunga | Gallaxhar | Robot Probes | Derek Dietl | Red Death | Rumpelstiltskin | Fifi | Pied Piper | Megamind | Minion | Brainbots | Tighten | Lord Shen | Boss Wolf | Lord Shen's Wolf Army | Jack & Jill | Humpty Alexander Dumpty | Chantel DuBois | Pitch Black | Nightmares | Guy Gagné | Ms. Grunion | Drago Bludvist | Muddy Bewilderbeast | Drago's Army | Eret | Dave | Octopi | Captain Smek | Officer Kyle | The Boov | Kai the Collector | Chef | Creek | King Gristle Sr. | Francis E. Francis | Eugene Francis | Professor Poopypants | Benjamin Krupp | Melvin Sneedly | Turbo Toilet 2000 | Talking Toilets

Aardman Animations
Mrs. Tweedy | Mr. Tweedy | Victor Quartermaine | Philip | The Toad | Le Frog | Spike & Whitey | Thimblenose Ted | Fat Barry | Ladykiller

Mr. Chew | Tour Guide | Boneknapper | Wu Sisters | Le Chuchoteur | Fearless Leader | Boris Badenov | Natasha Fatale