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)

Greg Ellis

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

Bart Flynn

Giant Cyclops / Ugly Pirate (voice)

C.H. Greenblatt

Fred Fredburger / Pirate #4 (voice)

Jennifer Hale

Billy's Mom (voice)

Dorian Harewood

Older Irwin (voice)

Phil LaMarr

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

Rachael MacFarlane

2 Headed Parrot (voice)

George Segal

Horror (voice)

Armin Shimerman

General Skarr / Pirate #7 (voice)

James Silverman

Executioner / Pirate #1 (voice)

Lauren Tom

Numbuh Three (voice)

Billy West

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

Fred Willard

The Boogey Man (voice)

Joo-Shik Yoo

Animation Director

Soo-hyun Park

Animation Director

Robert Alvarez

Director

Shaun Cashman

Producer

Jim Hearn

Dialogue Editor

Shalonda Ware

Production Accountant

Anna Chambers

Prop Maker

Brad Brock

Sound Re-Recording Mixer

Russell Calabrese

Director

Gordon Kent

Director

Christine Kolosov

Director

Michel Lyman

Director

Phil Rynda

Color Designer

Rob Desales

Editor

Matt Engstrom

Director

Hyung-tae Kim

Animation Director

Lee Jae Bok

Animation Director

Louis J. Cuck

Producer

Kris Zimmerman

Casting

Jay Bastian

Executive In Charge Of Production

Phil Cummings

Director

Illya Owens

Editor

Frank Homiski

Characters

Jennifer Pelphrey

Producer

Marc Perry

Art Direction

Brian A. Miller

Executive Producer

Sandy Benenati

Animation

Antonio Gonella

Supervising Technical Director

Tony Tedford

Post Production Supervisor

Sue Perrotto

Director

Kris Sherwood

Director

Kwang-bae Park

Animation Director

Mark Bachand

Prop Maker

Timothy J. Garrity

Sound Re-Recording Mixer

Eva Wu

Characters

Don Watson

Background Designer

Shaun Cashman

Director

Jesse Arruda

Sound Editor

Azariah Owens

Visual Effects

Cliff Voorhees

Background Designer

Marc Perry

Characters

Eric Sequeira

Sound Re-Recording Mixer

Alicia Parkinson

Post Production Supervisor

Pietro Piumetti

Producer

Glenn Oyabe

Sound Editor

Joe Binggeli

Characters

Ben Pile

Producer

Eddy Houchins

Director

James Silverman

Production Manager

Robert Serda

Sound Engineer

Jeremy J. Bargiel

Writer

Nina G. Bargiel

Writer

Maxwell Atoms

Writer

Maxwell Atoms

Story

Tara Whitaker

Storyboard Artist

Maxwell Atoms

Storyboard Artist

John Holmquist

Storyboard Artist

Chris Headrick

Storyboard Artist

C.H. Greenblatt

Storyboard Artist

Chris Mitchell

Storyboard Artist

Alex Almaguer

Storyboard Artist

Jay Baker

Storyboard Artist

Spencer Laudiero

Storyboard Artist

Shaun Cashman

Storyboard Artist

Ian Wasseluk

Storyboard Artist

Mike Diederich

Storyboard Artist

Maxwell Atoms

Characters

Maxwell Atoms

Executive Producer

Bill Flores

Background Designer

Drew Neumann

Original Music Composer

Gregory Hinde

Original Music Composer

Kris Zimmerman

Sound Director

Juli Murphy

Director

Joe Binggeli

Background Designer

Phil Rynda

Characters