Tim Daly
Superman / Clark Kent (voice) (13 eps)
Dana Delany
Lois Lane (voice) (13 eps)
John Rubano
News Anchor (voice) (4 eps)
Corey Burton
Brainiac (voice) (3 eps)
Nicholle Tom
Supergirl / Kara (voice) (3 eps)
Shelley Fabares
Martha Kent (voice) (3 eps)
Peri Gilpin
Volcana (voice) (2 eps)
John Mariano
Agent #3 (voice) (2 eps)
Dennis Haysbert
Doctor #1 (voice) (2 eps)
Jennifer Hale
Additional Voices (voice) (2 eps)
Tress MacNeille
Pilot (voice) (2 eps)
Jason Marsden
Young Clark Kent (voice) (2 eps)
Townsend Coleman
Death Fist Ninja (voice) (2 eps)
Mike Farrell
Jonathan Kent (voice) (2 eps)
Michael Ironside
Darkseid (voice) (2 eps)
Diane Michelle
Lashina (voice) (2 eps)
Andrea Martin
Mad Harriet (voice) (2 eps)
Diane Delano
Stompa (voice) (2 eps)
Charles Napier
General Hardcastle (voice) (2 eps)
Robert David Hall
Reporter (voice) (2 eps)
Ed Asner
Granny Goodness (voice) (2 eps)
Sarah Douglas
Mala (voice) (1 eps)
Michael Greco
Green Lantern / Kyle Rayner (voice) (1 eps)
Henry Silva
Bane (voice) (1 eps)
Jason Priestley
Chameleon Boy / Reep Daggle (voice) (1 eps)
Gilbert Gottfried
Mr. Mxyzptlk (voice) (1 eps)
William H. Macy
Director (voice) (1 eps)
Nancy Travis
Darci Mason (voice) (1 eps)
Jennifer Jason Leigh
Cetea (voice) (1 eps)
Mathew Valencia
Robin / Tim Drake (voice) (1 eps)
Chad Lowe
Cosmic Boy / Rokk Krinn (voice) (1 eps)
Brian George
Eugene (voice) (1 eps)
Joely Fisher
Lana Lang (voice) (1 eps)
Gregg Berger
Agent #2 (voice) (1 eps)
Peter Gallagher
Kurt (voice) (1 eps)
Peter Mark Richman
Abin Sur / Guardian #1 (voice) (1 eps)
Paul Williams
Penguin (voice) (1 eps)
Melissa Joan Hart
Saturn Girl / Imra Ardeen (voice) (1 eps)
Stuart Pankin
Doctor Cardy (voice) (1 eps)
Roddy McDowall
Mad Hatter (voice) (1 eps)
Ron Perlman
Jax-Ur (voice) (1 eps)
Tony Pope
Scientist (voice) (1 eps)
Miguel Sandoval
Doctor #2 (voice) (1 eps)
Charity James
Roxy Rocket (voice) (1 eps)
Joanna Cassidy
Maggie Sawyer (voice) (1 eps)
Stephen Root
Reverend Amos Howell / Unity (voice) (1 eps)
Bob Hastings
Commissioner Gordon (voice) (1 eps)
John Glover
The Riddler (voice) (1 eps)
Debi Mae West
Billy (voice) (1 eps)
Bud Cort
The Toyman (voice) (1 eps)
Kelly Schmidt
Lana Lang (voice) (1 eps)
Scott Menville
Kenny Braverman (voice) (1 eps)
Peter Renaday
News Anchor (voice) (1 eps)
Susanne Blakeslee
Teacher (voice) (1 eps)
Frank Welker
Krypto (voice) (1 eps)
Carl Lumbly
Alterus (voice) (1 eps)
Steve McGowan
Stormtrooper Guard (voice) (1 eps)
Ted Levine
Sinestro (voice) (1 eps)
Pat Musick
Guardian #2 (voice) (1 eps)
Mark Jonathan Davis
Dude (voice) (1 eps)
Lauren Tom
Angela Chen (voice) (1 eps)
Larry Cedar
Restaurant Owner (voice) (1 eps)
Melissa Disney
College Girl (voice) (1 eps)
Charles Rocket
Used Car Salesman (voice) (1 eps)
Dina Sherman
Tina (voice) (1 eps)
David Walsh
Captain Croissant (voice) (1 eps)
Brad Garrett
Bibbo (voice) (1 eps)
Miguel Ferrer
Aquaman (voice) (1 eps)
Billy West
Lexie #2 (voice) (1 eps)
Murphy Cross
Female Technician (voice) (1 eps)
David Warner
Ra's al Ghul (voice) (1 eps)
Olivia Hussey
Talia (voice) (1 eps)
Efrem Zimbalist Jr.
Alfred Pennyworth (voice) (1 eps)
Malcolm McDowell
John Corben / Metallo (voice) (1 eps)
Michael Horse
Ubu (voice) (1 eps)
Jeff Bennett
Guard (voice) (1 eps)
Lisa Edelstein Russell
Mercy Graves (voice) (1 eps)
Michael Dorn
Kalibak (voice) (1 eps)
Victor Brandt
Professor Hamilton (voice) (1 eps)