In this interactive special, Harold and George need your decision-making skills to stop Krupp from blowing their beloved treehouse to smithereens.
as Captain Underpants / Mr. Krupp / Buffalobe (voice)
as Harold Hutchins (voice)
as George Beard / Young Mr. Cleveland (voice)
as Narrator / Putter Mulligan (voice)
as Jessica / Dressy / Smartaconda (voice)
as Melvin / Stanley Peet (voice)
as Benjamin Franklin (voice)
as Comic Narrator / Marlin (voice)
as Steve 'Gooch' Yamaguchi (voice)
as Mr. Meaner (voice)
as Mr. Cleveland / Viper Chai (voice)
as Erica (voice)
as Miss Anthrope (voice)
as Bo Hweemuth (voice)
as Lee Dingman / Hugo Mouthingwad (voice)
