The Recurring Cast
Character · Jerome Horwitz Elementary · 12 books

Mr Krupp

Headmaster who becomes Captain Underpants · Dav Pilkey

Mr Krupp is the mean headmaster who becomes Captain Underpants.

Spoiler-free profile written for The Recurring Cast.

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Character facts

First appearance
The Adventures of Captain Underpants (1997)
Latest appearance
Captain Underpants and the Sensational Saga of Sir Stinks-a-Lot (2015)
Books
12 (12 major)
Series
Captain Underpants
Author
Dav Pilkey
Circle
Jerome Horwitz Elementary

Where to meet Mr Krupp

Mr Krupp first appears in The Adventures of Captain Underpants (1997), in a major role, book 1 of the Captain Underpants series.

Buy The Adventures of Captain Underpants

Every book with Mr Krupp

In publication order, with the size of their role in each.

  1. 1997MThe Adventures of Captain Underpantsmajor role · Captain UnderpantsBuy
  2. 1999MCaptain Underpants and the Attack of the Talking Toiletsmajor role · Captain UnderpantsBuy
  3. 1999MCaptain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies from Outer Spacemajor role · Captain UnderpantsBuy
  4. 2000MCaptain Underpants and the Perilous Plot of Professor Poopypantsmajor role · Captain UnderpantsBuy
  5. 2001MCaptain Underpants and the Wrath of the Wicked Wedgie Womanmajor role · Captain UnderpantsBuy
  6. 2003MCaptain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 1major role · Captain UnderpantsBuy
  7. 2003MCaptain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 2major role · Captain UnderpantsBuy
  8. 2006MCaptain Underpants and the Preposterous Plight of the Purple Potty Peoplemajor role · Captain UnderpantsBuy
  9. 2012MCaptain Underpants and the Terrifying Return of Tippy Tinkletrousersmajor role · Captain UnderpantsBuy
  10. 2013MCaptain Underpants and the Revolting Revenge of the Radioactive Robo-Boxersmajor role · Captain UnderpantsBuy
  11. 2014MCaptain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000major role · Captain UnderpantsBuy
  12. 2015MCaptain Underpants and the Sensational Saga of Sir Stinks-a-Lotmajor role · Captain UnderpantsBuy

Appears most often with

CharacterBooks together
George BeardPrankster and comic writer12
Harold HutchinsGeorge's best friend, the artist12