The Spooky Tale of Captain Underpants Hack-a-ween (2019)

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)