Billy & Mandy's Jacked-Up Halloween

Overview

Jack, a headless prankster from Grim's past, uses Billy to steal Grim's scythe so he can destroy Grim and take over the world with demons from the Netherworld.

Top Cast

Grey DeLisle

Mandy/Granny/Cowgirl (voice)

Greg Eagles

Grim/Spirit/Knight (voice)

Richard Steven Horvitz

Billy/Guy (voice)

Wayne Knight

Jack (voice)