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.
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.
Grey DeLisle , Greg Eagles , Richard Steven Horvitz
Robert Alvarez
Cartoon Network Studios ,
as Mandy/Granny/Cowgirl (voice)
as Grim/Spirit/Knight (voice)