The Spooky Tale of Captain Underpants: Hack-a-ween

Where are all of the Halloween decorations?

When Melvin tries to cancel Halloween, clever best friends Harold and George create their own spooky holiday -- and it's a huge success!

Comedy Animation Family

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))