<P> The series began streaming on Netflix on July 13, 2018 . </P> <P> The series revolves around the adventures of pranksters and comic book artists George Beard and Harold Hutchins, and their strict principal Mr. Krupp, who was hypnotized by George & Harold to become their creation: Captain Underpants, a brief - wearing superhero . </P> <Ul> <Li> Nat Faxon as Captain Underpants / Mr. Krupp </Li> <Li> Ramone Hamilton as George Beard </Li> <Li> Jay Gragnani as Harold Hutchins </Li> <Li> David Koechner as Mr. Meaner </Li> <Li> Tress MacNeille as Ms. Hurd </Li> <Li> Laraine Newman as Ms. Tara Ribble </Li> <Li> Stephen Root as Mr. Morty Fyde </Li> <Li> Jorge Diaz as Melvin Sneedly </Li> <Li> Mindy Sterling as Mrs. Sneedly </Li> <Li> Erica Luttrell as Erica Wang </Li> <Li> Dayci Brookshire as Jessica Gordon </Li> <Li> Evan Kishiyama as Steve "Gooch" Yamaguchi </Li> <Li> Peter Hastings as Comic Narrator </Li> <Li> Trevor Devall as Smartsy Fartsy </Li> <Li> Clancy Brown as Mr. Ree </Li> <Li> Patty Mattson as Ms. Anthrope </Li> <Li> Jim Rash as Mr. Jerry Citizen </Li> <Li> Maggie Wheeler as Ms. Yewh </Li> <Li> John DiMaggio as Smelly Sockotpus </Li> <Li> Rob Riggle as Theodore "Ted" Murdsly </Li> </Ul> <Li> Nat Faxon as Captain Underpants / Mr. Krupp </Li>

When is captain underpants season 2 coming out