Cast
- Flapjack as Billy
- Gaz as Mandy
- Gru as The Grim Reaper
- Cleveland Brown Jr. as Irwin
- Roger Radcliffe as Harold
- Anita Radcliffe as Gladys
- Dexter's Mom as Claire
- Professor Utonium as Phillip
- Mertle Edmonds as Mindy
- Belson as Sperg
- Cricket Green as Pud'n
- Adagio Dazzle as Eris
- Ash Williams as Hoss Delgado
- Dipper Pines as Nigel Planter
- Grim Gloom as Nergal
- Mac Foster as Nergal Jr.