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Underfist - Halloween Bash
- Gads: 2008
- Valsts:
- Žanrs: Action, Comedy, Family, Fantasy, Animation, TV Movie, Adventure, Horror
- Studija: Cartoon Network Studios
- Atslēgvārds: halloween, grim reaper, spin off
- Direktors: Shaun Cashman
- Lomās: Grey DeLisle, Greg Eagles, Richard Steven Horvitz, Vanessa Marshall, Diedrich Bader, Armin Shimerman