Elenco
Nat Faxon
Captain Underpants / Mr. Krupp (voice)
Jay Gragnani
Harold (voice)
Ramone Hamilton
George (voice)
Sean Astin
Narrator (voice)
Dayci Brookshire
Jessica / Dressy (voice)
Jim Cummings
Santa (voice)
Jorge Diaz
Melvin / Stanley Peet (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)
Nolan North
Yule Tide / Lee Dingman / Movie Harold / Movie Santa (voice)
Kevin Michael Richardson
George's Dad / Movie George (voice)
Equipe
Matt Smith
Writer
Dav Pilkey
Novel
Kevin Peaty
Director
Mark Banker
Writer
Todd Grimes
Supervising Producer
Erik Kling
Director
Cymbre Walk
Casting
Peter Hastings
Executive Producer
Ania O'Hare
Casting
David Wiebe
Executive In Charge Of Production
Ashley Laidlaw
Line Producer
Grahaeme Cowie
Storyboard Artist
Derek Moore
Storyboard Artist
Andrew Murray
Storyboard Artist
Ian Young
Storyboard Artist
Jared Faber
Original Music Composer
Fred Kron
Original Music Composer