Sean Astin

Chester (voice)

Brian Kimmet

Harold (voice)

Chris Kattan

Bunnicula / Mina's Dad (voice)

Kari Wahlgren

Mina (voice)

Eric Bauza

Patches the Weredude (voice)

Richard Steven Horvitz

Lugosi (voice)

Tom Kenny

Mr. Molesby / Moles (voice)

Carlos Alazraqui

Giant Snake (voice)

Laraine Newman

Greta (voice)

Harland Williams

Thomas Edison's Ghost / Alien (voice)

Chad Doreck

Colt Bifton (voice)

Joe Thomas

Pa Rabbit (voice)

Joe J. Thomas

Carl Lumbly

Lead Prison Guard / Vampire Bat (voice)

Daran Norris

Agent 51 (voice)

Rick Zieff

General Cashews (voice)

Sonya Leslie

Queen Sewariel (voice)

Yuri Lowenthal

Zakarov (voice)

Donovan Patton

Putt-Putt Pete (voice)

Max Mittelman

Genie (voice)

Fred Tatasciore

Chaos (voice)

Gail Bean

Tabitha (voice)

Patrick Seitz

Zogthoth (voice)

Robert Catrini

Rat Pack Boss (voice)

Jasmine Kaur

DJ Demon (voice)

Will Friedle

Captain Science Magic Love (voice)

P.J. Byrne

Boogaloo (voice)

David Shaughnessy

Harold's Tail (voice)

Rhasaan Orange

Weasel (voice)

Roger Craig Smith

Party Animal (voice)

Steve Blum

Marvin the Ghost (voice)

Trevor Devall

Lucky Cricket (voice)

Grey DeLisle

Madam Pollidori (voice)

Yvette Nicole Brown

Ms. Varney (voice)

Kate Higgins

Becky (voice)

Monnie Mon

Marsha (voice)