Bruce Wayne / Batman (voice)
Peter Weller
Carrie Kelley / Robin (voice)
Ariel Winter
The Son of Batman / Rookie Police Officer (voice)
Yuri Lowenthal
Dr. Bartholomew Wolper (voice)
Michael McKean
Murray / Radio Voice (voice)
James Patrick Stuart
Mr. Hudson / Spud (voice)
James Arnold Taylor
Thomas Wayne / Hydrant Fireman (voice)
Bruce Timm
Mayor Stevenson / Weather Man (voice)
Frank Welker
Mutant Leader / Anchor Bill (voice)
Gary Anthony Williams
Jeff Adams (voice)
Rob Paulsen
Clark Kent / Superman (voice)
Mark Valley
Oliver Queen (voice)
Robin Atkin Downes
Commissioner James Gordon (voice)
David Selby
Selina Kyle / Bruno / Old Woman(voice)
Tress MacNeille
President Ronald Reagan (voice)
Jim Meskimen
David Endochrine (voice)
Conan O'Brien
Frank (voice, uncredited)
Andy Richter
Anchor Carla / Female Mutant (voice)
Grey DeLisle
Silk / Other Spike / Young Mutant (voice)
Gary Anthony Sturgis
Hernando / TV Host (voice)
Carlos Alazraqui
Joanie / Woman with Hot Dog (voice)
Cathy Cavadini
Mackie / Ben Derrick (voice)
Greg Eagles
Morrie / Civilian (voice)
Townsend Coleman
Harvey Dent / Two-Face (voice)
Wade Williams
Dr. Willing / News Anchor (voice)
Maurice LaMarche
Anchor Ted (voice)
Sam McMurray
Young Bruce Wayne / Additional Voices (voice)
Tara Strong
Woman / Police Dispatch / Woman #2 (voice)
Andrea Romano
Lola Chong (voice)
Gwendoline Yeo
Merkel (voice)
Manny Jacobs
Femur (voice)
Jim Wise
Rescued Man (voice)
Lex Lang
Axe Fireman (voice)
Jason Charles Miller
Joker (voice)
Michael Emerson
Don / Fat Mutant / Additional Voices (voice)
Dee Bradley Baker
Commissioner Ellen Yindel (voice)
Maria Canals-Barrera
Lana Lang (voice)
Paget Brewster
The Mayor (voice)
Richard Doyle
Alfred Pennyworth (voice)
Michael Jackson
Director
Jay Oliva
Executive Producer
Michael Uslan
Sam Register
Producer
Alan Burnett
Original Story
Frank Miller
Editor
Christopher D. Lozinski
Casting
Meredith Layne
Music
Christopher Drake
Writer
Bob Goodman