Cast
Nat Faxon
Captain Underpants / Mr. Krupp / Buffalobe (voice)
Jay Gragnani
Harold Hutchins (voice)
Ramone Hamilton
George Beard / Young Mr. Cleveland (voice)
Sean Astin
Narrator / Putter Mulligan (voice)
Dayci Brookshire
Jessica / Dressy / Smartaconda (voice)
Jorge Diaz
Melvin / Stanley Peet (voice)
Todd Grimes
Benjamin Franklin (voice)
Peter Hastings
Comic Narrator / Marlin (voice)
Evan Kishiyama
Steve 'Gooch' Yamaguchi (voice)
David Koechner
Mr. Meaner (voice)
Phil LaMarr
Mr. Cleveland / Viper Chai (voice)
Erica Luttrell
Erica (voice)
Patty Mattson
Miss Anthrope (voice)
Brennan Murray
Bo Hweemuth (voice)
Nolan North
Lee Dingman / Hugo Mouthingwad (voice)
Crew
Art
Jocelan Thiessen
Storyboard Artist
Kevin Peaty
Storyboard Artist
Andrew Murray
Storyboard Artist
Derek Moore
Storyboard Artist
Ryan Hansen
Storyboard Artist
Ian Young
Storyboard Artist
Grahaeme Cowie
Storyboard Artist
Erik Kling
Storyboard Artist
Andrew Bendik
Storyboard Artist
Directing
Todd Grimes
Director
