Billy / Billybot / Harold / Pale Ghoulish Juror / Chippy the Squirrel (voice) (as Richard Horvitz)

Richard Steven Horvitz

Acting

Mandy / Mandroid / Older Mandy / Milkshakes / Some Kid (voice)

Grey DeLisle

Acting

Grim / Sperg / Pirate #6

Greg Eagles

Acting

Irwin / Pirate #5 / Unicorn (voice)

Vanessa Marshall

Acting

I'll Cut You Guy / Pirate #2 / Horrorbot / Burnt Skeleton Guard (voice)

Maxwell Atoms

Writing

Peequay (voice)

George Ball

Acting

Bride of Frankenstein (voice)

Jane Carr

Acting

Creeper / Horror's Hand / Pirate #3 / Paperboy (voice)

Greg Ellis

Acting

Giant Cyclops / Ugly Pirate (voice)

Bart Flynn

Acting

Fred Fredburger / Pirate #4 (voice)

C.H. Greenblatt

Writing

Billy's Mom (voice)

Jennifer Hale

Acting

Older Irwin (voice)

Dorian Harewood

Acting

Space Villain / Glacier of Evil / Dracula / Judge Roy Spleen / Underworld Cop (voice)

Phil LaMarr

Acting

2 Headed Parrot (voice)

Rachael MacFarlane

Acting

Horror (voice)

George Segal

Acting

General Skarr / Pirate #7 (voice)

Armin Shimerman

Acting

Executioner / Pirate #1 (voice)

James Silverman

Production

Numbuh Three (voice)

Lauren Tom

Acting

Pirate #8 / Miniature Cyclops / Spider Clown Mailman / Beast Master (voice)

Billy West

Acting

The Boogey Man (voice)

Fred Willard

Acting