Thomas Allen

Peanut (voice)

John Michael Higgins

Mentok the Mindtaker (voice)

Chris Edgerly

Peter Potamus (voice)

Gary Cole

Judge Hiram Mightor (voice)

Erik Richter

Bob (voice)

Stephen Colbert

Phil Ken Sebben / Myron Reducto (voice)

Paget Brewster

Acteur

Peter MacNicol

Acteur

Bill Farmer

Secret Squirrel (voice)

Paul Adelstein

Acteur

Michael McKean

Evelyn Spyro Throckmorton (voice)

Nika Futterman

Acteur

Patience Cleveland

Acteur

Mark Hamill

Ricochet Rabbit (voice)

Mary Birdsong

Acteur

Neil Ross

Dr. Benton C. Quest / Vulturo (voice)

Debi Mae West

Acteur

Rob Paulsen

Acteur

Kym Whitley

Acteur

Robert Osborne

Acteur

Diane Michelle

Acteur

Phil LaMarr

Black Vulcan / Civilian #2 (voice)

Lewis Black

The Deadly Duplicator (voice)

Wally Wingert

Hadji (voice)

Maurice LaMarche

Apache Chief / Announcer (voice)

Thom Pinto

Race Bannon (voice)

Steve Landesberg

Grok (voice)

Billy West

Dr. Zin (voice)

Scott Innes

Shaggy Rogers / Scooby-Doo / Scrappy-Doo / Prisoner #1 (voice)

Jack Angel

General / Drunk Man / Additional Voices (voice)

Michael Bell

Zan (voice)

Laraine Newman

Sybil Scussler / Mrs. Debbie (voice)

Jeff Bergman

George Jetson / Bakov / Clown (voice)

Toby Huss

Devlin (voice)

B.J. Ward

Velma Dinkley (voice)

Larry Morris

Harvey Birdman

Bazyl Dripps

Tab Can

Tom Kenny

Elroy (voice)

Ken Brady

Cop No. 1 (voice)

Dee Bradley Baker

Forensic Pathologist / Foreman / Lizardman (voice)

Luca Magnanini

Cop No. 2 (voice)

Matt Peccini

Bear (voice)

Frank Welker

Fred Jones / Avenger / Robot (voice)

Tony Masa

Kenji (voice)

Jeanne Mori

Seiko / Miko (voice)

Adam Lawson

Avenger / Gleep (voice)

Toshi Toda

Shoyu Weenie's Manager (voice)

Tress MacNeille

Wilma Flintstone / Pebbles Flintstone (voice)

Doug Preis

Thundarr (voice)

Grey DeLisle

Dr. Gale Melody / Debbie (voice)

Kevin Michael Richardson

Barney Rubble (voice)

Carol Bach Rita

Operator (voice)

David Kaye

Officer (voice)

Joe Alaskey

Peter Potamus / Employee (voice)

André Sogliuzzo

Dynomutt / Avenger / Co-Worker (voice)

Omid Djalili

Perfectionist (voice)