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.
Full Cast of Billy & Mandy's Jacked-Up Halloween
Grey DeLisle
as Mandy/Granny/Cowgirl (voice)
Grey DeLisle (born August 24, 1973), sometimes credited as Grey Griffin, is an American voice actress, comedian and s...
Wayne Knight
as Jack (voice)
Wayne Elliot Knight (born August 7, 1955) is an American actor. In television, he played Newman on Seinfeld (1992–199...
Vanessa Marshall
as Irwin/Toilet Paper Woman (voice)
Vanessa Marshall (born October 19, 1969 in Los Angeles, California, U.S.) is an American voice and television actress...
Billy West
as Giant Pumpkin/Lumber Jack/Announcer/Cell Phone Guy (voice)
William Richard "Billy" West (born April 16, 1950) is an American voice actor. He launched his career in the early 19...
Crew of Billy & Mandy's Jacked-Up Halloween
Discover the backstage crew of Billy & Mandy's Jacked-Up Halloween →- Released on October 31, 2003