On the shelf
Underfist: Halloween Bash
2008Age guide: 10+
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Checked 11 Nov 2026 · Data: JustWatch
See it on the shelfIrwin, 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.
★ 7.4/10 · 18 TMDB audience ratings
Starring
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)
