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Captain Underpants

Captain Underpants is a fictional superhero character from Dav Pilkey’s children's book series of the same name.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated September 10, 2026|2 min read| Fact-checked

Captain Underpants is a fictional superhero character from Dav Pilkey’s children's book series of the same name. In the stories, he is the alter ego of school principal Mr. Krupp, who is hypnotized by two fourth graders, George Beard and Harold Hutchins. The character first appeared in The Adventures of Captain Underpants, published in 1997, and has since expanded into film and television adaptations.

Character overview

Captain Underpants is a fictional superhero created by George Beard and Harold Hutchins within Dav Pilkey’s series. He is closely tied to the character of Mr. Krupp, who becomes Captain Underpants under hypnosis.

Role in the series

The character appears in stories centered on George and Harold, two fourth graders who make comic books and cause the principal to transform into their superhero creation. The premise drives the series’ comedy and action.

Publication and franchise

The character first appeared in The Adventures of Captain Underpants, published in 1997. The series later expanded into sequels and multimedia adaptations, including an animated film and television series.

Cultural reception

Captain Underpants became a well-known children's character through the popularity of Pilkey’s books. Britannica describes the series as aimed at elementary- and middle-school students.

Key facts

  • Captain Underpants is the title character of a children's book series and related media franchise created by Dav Pilkey.
  • The character originates in the homemade comics of George Beard and Harold Hutchins.
  • In the series, George and Harold hypnotize their school principal, Mr. Krupp, causing him to become Captain Underpants.
  • The franchise expanded beyond books into film and television adaptations.
  • The character is associated with the humorous, elementary-school setting of the series.
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Canadian context

The series has been widely read in Canadian schools and libraries as part of children's popular fiction, though the character itself is not specifically Canadian.

Frequently asked questions

Who created Captain Underpants?
Captain Underpants was created by Dav Pilkey.
Is Captain Underpants a real person?
No. Captain Underpants is a fictional superhero character in a children's book series.
Who is Captain Underpants’s alter ego?
His alter ego is school principal Mr. Krupp, also identified as Benjamin Krupp.
What is the first Captain Underpants book?
The first book is The Adventures of Captain Underpants, published in 1997.
Who are George Beard and Harold Hutchins?
They are the two fourth graders who create Captain Underpants in their comics and hypnotize Mr. Krupp in the story.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Captain_Underpants
    Supports: Overview of the character, creator, premise, and franchise.
  2. Wikipediahttps://en.wikipedia.org/wiki/The_Adventures_of_Captain_Underpants
    Supports: First book, publication year, and story premise.
  3. Encyclopaedia Britannicahttps://www.britannica.com/topic/Captain-Underpants
    Supports: Character identity, target audience, and series context.
  4. Encyclopaedia Britannicahttps://www.britannica.com/topic/The-Adventures-of-Captain-Underpants
    Supports: First-book premise and role of hypnosis.
  5. Reading Is Fundamentalhttps://www.rif.org/literacy-central/book/adventures-captain-underpants
    Supports: Series premise and relationship between George, Harold, Captain Underpants, and Mr. Krupp.
  6. Wikipediahttps://en.wikipedia.org/wiki/Captain_Underpants:_The_First_Epic_Movie
    Supports: Film adaptation and release context.
  7. Fandomhttps://captainunderpants.fandom.com/wiki/The_Epic_Tales_of_Captain_Underpants
    Supports: Television adaptation context.