Billy / Billybot / Harold / Pale Ghoulish Juror / Chippy the Squirrel (voice) (as Richard Horvitz)
Mandy / Mandroid / Older Mandy / Milkshakes / Some Kid (voice)
Grim / Sperg / Pirate #6
Irwin / Pirate #5 / Unicorn (voice)
I'll Cut You Guy / Pirate #2 / Horrorbot / Burnt Skeleton Guard (voice)
Peequay (voice)
Bride of Frankenstein (voice)
Creeper / Horror's Hand / Pirate #3 / Paperboy (voice)
Giant Cyclops / Ugly Pirate (voice)
Fred Fredburger / Pirate #4 (voice)
Billy's Mom (voice)
Older Irwin (voice)
Space Villain / Glacier of Evil / Dracula / Judge Roy Spleen / Underworld Cop (voice)
2 Headed Parrot (voice)
Horror (voice)
General Skarr / Pirate #7 (voice)
Executioner / Pirate #1 (voice)
Numbuh Three (voice)
Pirate #8 / Miniature Cyclops / Spider Clown Mailman / Beast Master (voice)
The Boogey Man (voice)