Cast
Nat Faxon
Captain Underpants / Mr. Krupp (voice)
Jay Gragnani
Harold (voice)
Ramone Hamilton
George (voice)
Sean Astin
Narrator / Mr Gigglenose (voice)
Dayci Brookshire
Jessica / Dressy (voice)
Clancy Brown
Mr. Ree (voice)
Jorge Diaz
Melvin / Stanley Peet / Melvin's Dad (voice)
Peter Hastings
Comic Narrator (voice)
Evan Kishiyama
Steve "Gooch" Yamaguchi (voice)
David Koechner
Mr. Meaner (voice)
Erica Luttrell
Erica / George's Mom (voice)
Patty Mattson
Miss Anthrope / Harold's Mom (voice)
Brennan Murray
Bo Hweemuth (voice)
Kevin Michael Richardson
Diddlysaurus / George's Dad (voice)
Mindy Sterling
Melvin's Mom (voice)
Stephen Tobolowsky
Creepy Rattlechains (voice)
Kari Wahlgren
Mayor Hoppy McChapper (voice)
Crew
Dav Pilkey
Novel
Mark Banker
Writer
Seung Woo Cha
Director
Kevin Peaty
Director
Matt Smith
Writer
Peter Hastings
Executive Producer
Peter McCown
Line Producer
Ashley Laidlaw
Line Producer
Todd Grimes
Supervising Producer
Jared Faber
Music
Fred Kron
Music
David Wiebe
Executive In Charge Of Production
Andrew Bendik
Storyboard Artist
Derek Moore
Storyboard Artist
Ryan Hansen
Storyboard Artist
Ian Young
Storyboard Artist
