Billy & Mandy's Big Boogey Adventure
When the Boogey Man causes Grim to lose his powers, rank, and title in the Underworld Court for misusing his powers, he plots to seek out Horror's Hand and take over the world. It's up to Billy, Mandy, Irwin, and Grim to get to Horror's Hand before the Boogey Man does.
Director: Robert Alvarez, Russell Calabrese, Shaun Cashman, Phil Cummings, Matt Engstrom, Eddy Houchins, Gordon Kent, Christine Kolosov, Michel Lyman, Sue Perrotto, Kris Sherwood, Juli Murphy
Writers: Maxwell Atoms, Nina G. Bargiel, Jeremy J. Bargiel
Where to watch
HBO MaxTop cast
Richard Steven Horvitz
Billy / Billybot / Harold / Pale Ghoulish Juror / Chippy the Squirrel (voice) (as Richard Horvitz)
Grey DeLisle
Mandy / Mandroid / Older Mandy / Milkshakes / Some Kid (voice)
Greg Eagles
Grim / Sperg / Pirate #6
Vanessa Marshall
Irwin / Pirate #5 / Unicorn (voice)
Maxwell Atoms
I'll Cut You Guy / Pirate #2 / Horrorbot / Burnt Skeleton Guard (voice)
George Ball
Peequay (voice)
Jane Carr
Bride of Frankenstein (voice)
