On screen
Cast
56 credited performers
Thomas Allen
Peanut (voice)
John Michael Higgins
Mentok the Mindtaker (voice)
Chris Edgerly
Peter Potamus (voice)
Gary Cole
Judge Hiram Mightor (voice)
Stephen Colbert
Phil Ken Sebben / Myron Reducto (voice)
Peter MacNicol
Character not listed
Maurice LaMarche
Character not listed
Paget Brewster
Birdgirl (voice)
Phil LaMarr
Character not listed
Neil Ross
Character not listed
Grey DeLisle
Daphne Blake / Mrs. Debbie (voice)
Erik Richter
Prisoner / Answering Machine (voice)
Michael McKean
Evelyn Spyro Throckmorton (voice)
Lewis Black
The Deadly Duplicator (voice)
Steve Landesberg
Doctor Quincy (voice)
Frank Welker
Fred Jones / Avenger / Robot (voice)
Debi Mae West
Character not listed
Wally Wingert
Hadji (voice)
Toby Huss
Devlin (voice)
Tom Kenny
Boo Boo (voice)
Bill Farmer
Secret Squirrel (voice)
Kym Whitley
Character not listed
Scott Innes
Shaggy Rogers / Scooby-Doo / Scrappy-Doo / Prisoner #1 (voice)
Dee Bradley Baker
Jonny Quest / Lizardman / Avenger (voice)
Adam Lawson
Avenger (voice)
Carol Bach Rita
Talia (voice)
David Kaye
Announcer / Officer (voice)
Joe Alaskey
Peter Potamus / Employee (voice)
André Sogliuzzo
Dynomutt / Avenger / Co-Worker (voice)
Paul Adelstein
Character not listed
Nika Futterman
Character not listed
Patience Cleveland
Character not listed
Mark Hamill
Ricochet Rabbit (voice)
Mary Birdsong
Character not listed
Rob Paulsen
Character not listed
Robert Osborne
Character not listed
Diane Michelle
Character not listed
Thom Pinto
Race Bannon (voice)
Billy West
Dr. Zin (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)
B.J. Ward
Velma Dinkley (voice)
Larry Morris
Harvey Birdman
Bazyl Dripps
Tab Can
Ken Brady
Cop No. 1 (voice)
Luca Magnanini
Cop No. 2 (voice)
Matt Peccini
Bear (voice)
Tony Masa
Kenji (voice)
Jeanne Mori
Seiko / Miko (voice)
Toshi Toda
Shoyu Weenie's Manager (voice)
Tress MacNeille
Wilma Flintstone / Pebbles Flintstone (voice)
Doug Preis
Thundarr (voice)
Kevin Michael Richardson
Barney Rubble (voice)
Omid Djalili
Perfectionist (voice)