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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.

  1. Shaun Cashman


  2. Maxwell Atoms


Top Billed Cast

  1. Grey DeLisle

    Grey DeLisle

    Mandy / Aunt Sis / Kid / Ike

  2. Greg Eagles

    Greg Eagles

    Grim / Sperg / Giant Candy Bar

  3. Richard Steven Horvitz

    Richard Steven Horvitz

    Billy / Harold / Pumpkin / Trick-or-Treater Eater

  4. Vanessa Marshall

    Vanessa Marshall

    Irwin / Hoss's Mom

  5. Diedrich Bader

    Diedrich Bader

    Hoss Delgado

Full Cast & Crew

Underfist: Halloween Bash
Underfist: Halloween Bash


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Status Released

Release Information

  • October 12, 2008


Original Language English

Runtime 1h 1m

Budget -

Revenue -



Content Score


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