Streaming availability in United States

Where to Watch Underfist: Halloween Bash (2008)

Name: Underfist: Halloween Bash
Genre: Fantasy, Animation, Comedy, TV Movie, Family
Released: 2008-10-12
Duration: 61 min
Rating: 7.4

Irwin, Hoss Delgado, Jeff the Spider, Fred Fredburger, and General Skarr from the "Grim Adventures of Billy and Mandy" team up to fight an evil candy army from the Underworld on Halloween.

FantasyAnimationComedyTV MovieFamilyActionAdventureHorror 61 min 7.4/10 from 18 votes

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Cast

Grey DeLisle as Mandy / Aunt Sis / Kid / Ike (voice)
Greg Eagles as Grim / Sperg / Giant Candy Bar (voice)
Richard Steven Horvitz as Billy / Harold / Pumpkin / Trick-or-Treater Eater (voice)
Vanessa Marshall as Irwin / Hoss's Mom (voice)
Diedrich Bader as Hoss Delgado (voice)