Kevin Conroy
Batman (voice) (42 eps)
Jason J. Lewis
Superman (voice) (33 eps)
Rachel Kimsey
Jackie (voice) (27 eps)
Diedrich Bader
Booster Gold / Uthool (voice) (8 eps)
Chris Diamantopoulos
Oliver Queen / Green Arrow (voice) (8 eps)
P.J. Byrne
Firestorm (voice) (8 eps)
Mark Hamill
The Joker (voice) (8 eps)
Stephen Tobolowsky
Professor Stein (voice) (8 eps)
James Woods
Lex Luthor / Repulse (voice) (7 eps)
Khary Payton
Cyborg (voice) (7 eps)
Dana Snyder
Penguin (voice) (6 eps)
Tara Strong
Dr. Harleen Quinzel / Harley Quinn (voice) (5 eps)
Lacey Chabert
Zatanna (voice) (5 eps)
Charlie Schlatter
The Flash (voice) (5 eps)
Patton Oswalt
Space Cabbie (voice) (5 eps)
Damian O'Hare
Constantine (voice) (4 eps)
Troy Baker
Hawkman / Jonas Glim (voice) (4 eps)
John DiMaggio
Lobo (voice) (4 eps)
Jerry O'Connell
Atom (voice) (4 eps)
Natalie Lander
Stargirl (voice) (4 eps)
Jonathan Adams
Darkseid (voice) (4 eps)
Sean Astin
Billy Batson / Shazam (voice) (3 eps)
Laura Post
Big Barda (voice) (3 eps)
Fred Tatasciore
Robot (voice) (3 eps)
Cloris Leachman
Granny Goodness (voice) (3 eps)
Josh Keaton
Hal Jordan / Green Lantern (voice) (3 eps)
Jon Cryer
Felix Faust (voice) (3 eps)
Gilbert Gottfried
Mr. Mxyzptlk (voice) (3 eps)
Gary Cole
Black Adam (voice) (2 eps)
Dan Donohue
Brother Night / Merlin (voice) (2 eps)
Patrick Seitz
Jason Blood / Etrigan the Demon / Merlin (voice) (2 eps)
Jake T. Austin
Blue Beetle (voice) (2 eps)
Max Mittelman
Jimmy Olsen / Parasite (voice) (2 eps)
Trevor Devall
Cain (voice) (2 eps)
Piotr Michael
Kalibak / Perry White (voice) (2 eps)
John de Lancie
Brainiac (voice) (2 eps)
Jasika Nicole
Vixen (voice) (2 eps)
Noel Fisher
Klarion the Witch Boy (voice) (2 eps)
Crispin Freeman
Martian Manhunter (voice) (2 eps)
Oliver Vaquer
Mr. Mind (voice) (2 eps)
Hannibal Buress
Michael Holt / Mister Terrific (voice) (2 eps)
Ely Henry
Noah Kuttler / Calculator (voice) (2 eps)
David Sobolov
Gorilla Grodd (voice) (2 eps)
Fryda Wolff
Faora (voice) (2 eps)
Andy Richter
Chronos (voice) (2 eps)
Ken Jeong
Toyman (voice) (2 eps)
Michael Dorn
Atrocitus (voice) (2 eps)
Joanne Spracklen
Supergirl (voice) (2 eps)
Carl Reiner
The Wizard (voice) (1 eps)
David Lodge
Calythos / Warden (voice) (1 eps)
Melissa Disney
Mom / Brat (voice) (1 eps)
Kevin Shinick
Dad (voice) (1 eps)
Peter Jessop
Steppenwolf (voice) (1 eps)
William Salyers
Virman Vunderbar (voice) (1 eps)
Dayci Brookshire
Kid Zatanna (voice) (1 eps)
Erica Luttrell
Kid Dr. Fate (voice) (1 eps)
Paula Rhodes
Kid Constantine (voice) (1 eps)
Julianne Grossman
Hippolyta (voice) (1 eps)
Armin Shimerman
Zilius Zox (voice) (1 eps)
Mena Suvari
Killer Frost (voice) (1 eps)
Jessica Walter
Athena (voice) (1 eps)
Robert Picardo
Harvey Dent / Two-Face (voice) (1 eps)
Christian Slater
Deadshot (voice) (1 eps)
Natasha Leggero
Poison Ivy (voice) (1 eps)
Gillian Jacobs
Roxy Rocket (voice) (1 eps)
Thomas Lennon
Amazo (voice) (1 eps)
Travis Willingham
Bizarro (voice) (1 eps)
Jon Lovitz
Sid Sharp (voice) (1 eps)
Darin De Paul
Sinestro (voice) (1 eps)
Jim Ward
The Brain (voice) (1 eps)
Brent Spiner
Edward Nigma / Riddler (voice) (1 eps)
Roger Craig Smith
Mr. Miracle (voice) (1 eps)
Grey DeLisle
Navigational System (voice) (1 eps)
John Astin
Uncle Dudley (voice) (1 eps)
Dania Ramirez
Red Velvet (voice) (1 eps)
Peter Stormare
Mr. Freeze (voice) (1 eps)