- Nicollette Sheridan - Miss Moore / Darcy (voice)
- Miguel Sandoval - Principal Aguilar (voice)
- Cree Summer - Candide (voice)
- Wendie Malick - Karen Roberts / Omnara (voice)
- Telma Hopkins - Mrs. Barnett (voice)
- Ron Perlman - Heavyman / Koenig (voice)
- Karen Maruyama - Kim (voice)
- Lara Jill Miller - Teen Girl #2 (voice)
- David Arquette - Leech (voice)
- Freddy Rodríguez - Fade / Tech (voice)
- Robert David Hall - Pilot (voice)
- Alfre Woodard - Jean Hawkins (voice)
- Karl Malone - Karl Malone / Pulverizer (voice)
- Dennis Haysbert - Chief Barnsdale (voice)
- Eli Marienthal - Robin (voice)
- Joe Spano - Mr. Osgood (voice)
- Tone Loc - Hyde (voice)
- Linda Dangcil - Homeless Woman (voice)
- Lawrence Hilton-Jacobs - Driver (voice)
- Coolio - Replikon (voice)
- Will Friedle - Batman / Terry McGinnis (voice)
- James Arnold Taylor - Eddie Felson / Speedwarp (voice)
- John DiMaggio - Tarmack (voice)
- Richard Steven Horvitz - Jimmy Osgood (voice)
- Michael Clarke Duncan - Rashid 'The Rocket' Randall (voice)
- Ed Begley Jr. - Donald Todd (voice)
- Omar Gooding - Wade (voice)
- Terence Stamp - Dennis / Professor Menace (voice)
- Carlos Ferro - Effects Technician (voice)
- Laraine Newman - Mrs. Price (voice)
- Romeo Miller - Himself (voice)
- Shaquille O'Neal - Himself (voice)
- Jack Carter - Grandfather (voice)
- Malcolm-Jamal Warner - Lester Biggs (voice)
- Colleen O'Shaughnessey - Nightingale / Gail (voice)
- Alan Young - Dr. McDonald (voice)
- Phil Morris - Jonathan Vale (voice)
- Brian Tochi - Shiv (voice)
- Roscoe Lee Browne - Dr. Anokye (voice)
- Gregg Berger - Game Show Host (voice)
- Miriam Flynn - Ms. Pettibone (voice)
- Bud Cort - Toyman (voice)
- Richard Libertini - Ragtag (voice)
- Arleen Sorkin - Harley Quinn (voice)
- Brock Peters - Morris Grant / Soul Power (voice)
- Rachael MacFarlane - Nina / Flashback (voice)
- Dee Bradley Baker - Monster (voice)
- Lance Henriksen - Kobra Leader (voice)
- Jean Smart - Richie's Mom (voice)
- David Faustino - Executive (voice)
- David Faustino - Starburst (voice)
- David Ogden Stiers - Dr. Odium (voice)
- AJ McLean - AJ McLean (voice)
- Lorraine Toussaint - Dr. Franklin (voice)
- Dawnn Lewis - Brickhouse (voice)
- Corey Burton - Brainiac (voice)
- Vernee Watson-Johnson - Mrs. Watkins (voice)
- Pamela Tyson - Dolores Vale (voice)
- Sheryl Lee Ralph - Trina Jessup (voice)
- John Cho - Tantrum / Thomas Kim (voice)
- John Cho - Navigator (voice)
- Kevin Conroy - Batman / Bruce Wayne (voice)
- Neil Patrick Harris - Replay / Johnny Morrow (voice)
- Keone Young - Mr. Lee (voice)
- Jeff Bennett - Anchor Jim (voice)
- Dan Lauria - Mr. Foley (voice)
- George Newbern - Superman / Clark Kent (voice)
- Nestor Carbonell - Garcia (voice)
- Frank Welker - Packard (voice)
- Rodney Saulsberry - Phillip Rollins / Sparky (voice)
- Mark Hamill - Joker (voice)
- Sean Patrick Thomas - Dante (voice)
- Sean Patrick Thomas - Marcus (voice)
- Michael Dorn - Reverend Anderson (voice)
- Pat Musick - Mrs. Osgood (voice)
- T'Keyah Crystal Keymáh - Teen Girl (voice)
- T'Keyah Crystal Keymáh - Allie / Nails (voice)
- David Paymer - Mason Andrews (voice)
- Michael Paul Chan - Mr. Kim (voice)
- Efrem Zimbalist Jr. - Alfred Pennyworth (voice)
- Rickey D'Shon Collins - Boy (voice)
- Rickey D'Shon Collins - Boom (voice)
- Rickey D'Shon Collins - Ray (voice)
- Rel Hunt - Franke D'Amico (voice)
- Dorian Harewood - Warden (voice)
- Kath Soucie - El Gata (voice)
- Ambrosia Kelley - Young Sharon Hawkins (voice)
- Bob Hastings - Commissioner Gordon (voice)
- Marc Worden - Jokerz Gang Member (voice)
- Chris Cox - Steve Nash / Point Man (voice)
- Robert Costanzo - Detective Bullock (voice)
- Diane Pershing - Poison Ivy (voice)
- Art Bonilla - Cop (voice)
- Melissa Disney - Nurse (voice)
- Meshach Taylor - Dr. Harris (voice)
- Steve Franken - Mr. Janus (voice)
- Sananda Maitreya - D.J. Rock (voice)
- Kenn Michael - Jump (voice)
- Kenn Michael - Joe (voice)
- Chris Clarke - Back-up Singer (voice)
- Kerrigan Mahan - Edwin Alva (voice)
- Bever-Leigh Banfield - Ms. Wepman (voice)
- Marcus Toji - Duncan / Henry (voice)
- Blayn Barbosa - Dwayne (voice)
- R.J. Knoll - Aron (voice)
- Garrett Morris - Preacher (voice)
- Cameron Finley - Second Boy (voice)
- Marcelo Tubert - Young Technician (voice)
- Marcelo Tubert - Captain (voice)
- Marcelo Tubert - Doctor (voice)
- Leonard Donato - Bouncer (voice)
- Adam Baldwin - York (voice)
- CCH Pounder - Mayor (voice)
- Joe Lala - Security Guard (voice)
- Haunani Minn - Mrs. Kim (voice)
- Deetta West - Singer (voice)
- Obba Babatundé - Watch Store Salesman (voice)
- Obba Babatundé - Singer (voice)
- Jimmy Fisher - Singer (voice)
- Bumper Robinson - Troy / Chainlink (voice)
- Bumper Robinson - Derek Barnett / D-Struct (voice)
- Bumper Robinson - Tech (voice)
- Bumper Robinson - Slipstream (voice)
- Bumper Robinson - Royce Axelrod (voice)
- Gavin Turek - Mirage (voice)
- LaTonya Holmes - Tanisha (voice)
- Karyn Parsons - Tracy Flackman (voice)
- Matt Ballard - Carmen Dillo (voice)
- Matt Ballard - Junior / Omnefarious (voice)
- Matt Ballard - Spaced Out Customer (voice)
- Philip Tanzini - Joey (voice)
- Philip Tanzini - Run (voice)
- Hynden Walch - Permafrost (voice)
- Michael Rosenbaum - Trapper (voice)
- Michael Rosenbaum - Flash (voice)
- Michael Rosenbaum - Trapper / Speedtrap (voice)
- Chad Gabriel - Ray (voice)
- Mikey Kelley - Nick (voice)
- Michael Jai White - Osebo (voice)
- Rosslynn Taylor Jordan - Shenice / She-Bang (voice)
- Charles Rocket - Crewcut (voice)
- Gustavo Rex - Rojas (voice)
- Carl Lumbly - Anansi (voice)
- Carl Lumbly - Martian Manhunter (voice)
- Ariyan A. Johnson - Tamara (voice)
- Maria Canals-Barrera - Shelly Sandoval (voice)
- Maria Canals-Barrera - Hawkgirl (voice)
- Ted Levine - Sinestro (voice)
- Danny Cooksey - Hotstreak (voice)
- Danny Cooksey - F-Stop (voice)
- Danny Cooksey - Francis Stone / F-Stop (voice)
- Gary Anthony Sturgis - Ebon (voice)
- Gary Anthony Sturgis - Duke (voice)
- Nicholas Guest - Scientist (voice)
- Kadeem Hardison - Rubberband Man (voice)
- Tia Texada - Talon (voice)
- Tia Texada - Rita Velasquez (voice)
- Jen Sung - Yao Ming / Center Force (voice)
- Patton Oswalt - Specs (voice)
- Patton Oswalt - Specs / Spectral (voice)
- Richard Tatum - Omar Harmozi (voice)
- Crystal Scales - Daisy Watkins (voice)
- Crystal Scales - Coed #1 (voice)
- Marshall Jones - Dulé Jones (voice)
- Kimberly Brooks - Puff (voice)
- Kimberly Brooks - Madelyn (voice)
- Erika Monserrate Vélez Zambrano - Aquamaria (voice)
- Danica McKellar - Frieda (voice)
- Chick Vennera - Ferret (voice)
- Yeni Alvarez - Aquamaria (voice)
- Shane Sweet - Robin (voice)
- Sean Donnellan - Reporter (voice)
- Victor Dal Chele
- James Tucker
- Dan Riba
- Mark Howard
- Chuck Drost
- Denys Cowan
- Ralph Soll
- Christopher Simmons
- John Semper Jr.
- Ernie Altbacker
- Brooks Wachtel
- Adam Beechen
Mark Hamill hace el papel de Joker (voice).
Adam Baldwin interpreta a York (voice) en la serie.
Brock Peters hace el papel de Morris Grant / Soul Power (voice).
Ron Perlman interpreta a Heavyman / Koenig (voice) en la serie.
Michael Dorn hace el papel de Reverend Anderson (voice).
Dennis Haysbert interpreta a Chief Barnsdale (voice) en la serie.
Danny Cooksey hace el papel de F-Stop (voice).
Lance Henriksen interpreta a Kobra Leader (voice) en la serie.
Alfre Woodard interpreta a Jean Hawkins (voice) en la serie.
Phil LaMarr hace el papel de Virgil Hawkins / Static (voice).
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