Jason O'Mara Batman / Bruce Wayne (voice) Jennifer Morrison Catwoman / Selina Kyle (voice) Maury Sterling Thomas Elliot (voice) Sean Maher Nightwing / Dick Grayson (voice) Geoffrey Arend The Riddler / Edward Nigma (voice) James Garrett Alfred Pennyworth (voice) Jerry O'Connell Superman / Kal-El / Clark Kent (voice) Rebecca Romijn Lois Lane (voice) Bruce Thomas Jim Gordon (voice) Rainn Wilson Lex Luthor (voice) Peyton List Batgirl / Barbara Gordon (voice) Stuart Allan Robin / Damian Wayne (voice) Vanessa Williams Amanda Waller (voice) Peyton List Poison Ivy / Pamela Isley (voice) Jason Spisak The Joker (voice) Hynden Walch Harley Quinn (voice) Adam Gifford Bane / Clayface (voice) Sachie Alessio Lady Shiva (voice) Chris Cox Scarecrow (voice) Tara Strong Reporter (voice)