Capitão Cueca - Feliz Meganatal

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)