The Spooky Tale of Captain Underpants Hack-a-Ween Cast & Crew
Nat FaxonCaptain Underpants / Mr. Krupp (voice) Jay GragnaniHarold (voice) Ramone HamiltonGeorge (voice) Sean AstinNarrator / Mr Gigglenose (voice) Dayci BrookshireJessica / Dressy (voice) Clancy BrownMr. Ree (voice) Jorge DiazMelvin / Stanley Peet / Melvin's Dad (voice) Peter HastingsComic Narrator (voice) / Executive Producer Evan KishiyamaSteve "Gooch" Yamaguchi (voice) David KoechnerMr. Meaner (voice) Erica LuttrellErica / George's Mom (voice) Patty MattsonMiss Anthrope / Harold's Mom (voice) Brennan MurrayBo Hweemuth (voice) Kevin Michael RichardsonDiddlysaurus / George's Dad (voice) Mindy SterlingMelvin's Mom (voice) Stephen TobolowskyCreepy Rattlechains (voice) Kari WahlgrenMayor Hoppy McChapper (voice) Peter HastingsComic Narrator (voice) / Executive Producer Peter McCownLine Producer Ashley LaidlawLine Producer Todd GrimesSupervising Producer David WiebeExecutive In Charge Of Production 
