Underfist: Halloween Bash

"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."

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)

Armin Shimerman

as General Skarr / Candy Skeleton / Rat / Creepy Gnome (voice)

C.H. Greenblatt

as Fred Fredburger (voice)

Maxwell Atoms

as Jeff the Spider (voice)

Phil LaMarr

as Dracula / Grandmama / Bougersnatch (voice)

Rachael MacFarlane

as Mindy (voice)

Dave Wittenberg

as Bun-Bun / Trick-or-Treater Eater #1 / Jimbo (voice)

Dan Gilvezan

as Confic / Humicun (voice)

Greg Ellis

as Perkins / Peanutbutter Wheel / Tiny Skull (voice)

Jess Harnell

as Singer (voice)

Martin Jarvis

as Nergal / Police Officer / Tarvis (voice)

Crew

Maxwell Atoms

Storyboard Artist

Maxwell Atoms

Executive Producer

Maxwell Atoms

Art Direction

Shaun Cashman

Director

Shaun Cashman

Supervising Producer

Brian A. Miller

Executive Producer

Jennifer Pelphrey

Supervising Producer

Illya Owens

Editor

Drew Neumann

Music

Maxwell Atoms

Creator

James Silverman

Associate Producer

Maxwell Atoms

Writer

Kris Zimmerman

Casting