The monsters and creatures who appear in the Captain Underpants franchise.
“Zorx, Klax, and Jennifer are three space aliens who planned to invade Piqua, Ohio from Book 3...Zorx, Klax, and Jennifer
“The Robo Boogers are a trio of monsters created from snot and technology. The beast's names are...Robo-Boogers
Pages in category "Monsters"
The following 13 pages are in this category, out of 13 total.