Kevin Conroy Bruce Wayne / Batman (voice) Tim Daly Clark Kent / Superman (voice) Susan Eisenberg Diana Prince / Wonder Woman (voice) Michael Rosenbaum Barry Allen / The Flash (voice) Carl Lumbly J'onn J'onzz / Martian Manhunter (voice) / Ma'alefa'ak (voice) Paul Blackthorne John Corben / Metallo (voice) / Henry Ackerson (voice) Bumper Robinson Victor Stone / Cyborg (voice) Phil Morris Vandal Savage (voice) Nathan Fillion Hal Jordan / Green Lantern (voice) Carlos Alazraqui Bane / Terrorist Member (voice) Claudia Black Barbara Ann Minerva / Cheetah (voice) Olivia d'Abo Carol Ferris / Star Sapphire (voice) Alexis Denisof Sam Scudder / Mirror Master (voice) David Kaufman Jimmy Olsen (voice) Grey DeLisle Lois Lane (voice) / Queen (voice) Robin Atkin Downes Alfred Pennyworth / Jack (voice) Dee Bradley Baker Officer in Charge / Newscaster (voice) Brian George Mayor (voice) Juliet Landau Ten (voice) Jim Meskimen King (voice) Andrea Romano Bat Computer (voice) Bruce Timm Ace (voice) Danny Jacobs Special Agent Porter (voice)