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.
Grey DeLisleMandy / Aunt Sis / Kid / Ike (voice)
Greg EaglesGrim / Sperg / Giant Candy Bar (voice)
Richard Steven HorvitzBilly / Harold / Pumpkin / Trick-or-Treater Eater (voice)
Vanessa MarshallIrwin / Hoss's Mom (voice)
Diedrich BaderHoss Delgado (voice)
Armin ShimermanGeneral Skarr / Candy Skeleton / Rat / Creepy Gnome (voice)
C.H. GreenblattFred Fredburger (voice)
Maxwell AtomsJeff the Spider (voice)
Phil LaMarrDracula / Grandmama / Bougersnatch (voice)
Rachael MacFarlaneMindy (voice)
Dave WittenbergBun-Bun / Trick-or-Treater Eater #1 / Jimbo (voice)
Dan GilvezanConfic / Humicun (voice)
Greg EllisPerkins / Peanutbutter Wheel / Tiny Skull (voice)
Jess HarnellSinger (voice)
Martin JarvisNergal / Police Officer / Tarvis (voice)
