| Cameron Bowen | .... | Tim Drake / Robin (voice) |
| Lacey Chabert | .... | Zatanna Zatara (voice) |
| Tim Curry | .... | G. Gordon Godfrey (voice) |
| Bruce Greenwood | .... | Bruce Wayne / Batman (voice) |
| Logan Grove | .... | Garfield Logan / Beast Boy (voice) |
| Stephanie Lemelin | .... | Catherine Cobert / Computer (voice) |
| Eric Lopez | .... | Jaime Reyes / Blue Beetle (voice) |
| Yuri Lowenthal | .... | La'gaan / Lagoon Boy (voice) |
| Jesse McCartney | .... | Dick Grayson / Nightwing (voice) |
| Danica McKellar | .... | M'gann M'orzz / Miss Martian (voice) |
| Masasa Moyo | .... | Karen Beecher / Bumblebee / Cat Grant (voice) |
| Nolan North | .... | Conner Kent / Superboy / Matt Hagen / Clayface (voice) |
| Yuji Okumoto | .... | Tseng Dangun (voice) |
| Kevin Michael Richardson | .... | Mal Duncan / John Stewart / Green Lantern / J'onn J'onzz / M (voice) |
| David Sobolov | .... | Lobo (voice) |
| Alyson Stoner | .... | Barbara Gordon / Batgirl (voice) |
| Michael Trucco | .... | Adam Strange (voice) |
| Michael T. Weiss | .... | Nathaniel Adams / Captain Atom (voice) |
| Mae Whitman | .... | Cassie Sandsmark / Wonder Girl (voice) |
| Tim Curry | .... | G. Gordon Godfrey (voice) |
| Miguel Ferrer | .... | Vandal Savage / Bibbo Bibbowski (voice) |
| Bruce Greenwood | .... | Bruce Wayne / Batman / Eduardo Dorado Sr. (voice) |
| Kevin Grevioux | .... | Partner (voice) |
| Logan Grove | .... | Garfield Logan / Beast Boy (voice) |
| Phil LaMarr | .... | King Orin / Aquaman (voice) |
| Stephanie Lemelin | .... | Catherine Cobert / Computer (voice) |
| Eric Lopez | .... | Jaime Reyes / Blue Beetle (voice) |
| Yuri Lowenthal | .... | La'gaan / Lagoon Boy (voice) |
| Jesse McCartney | .... | Dick Grayson / Nightwing (voice) |
| Danica McKellar | .... | M'gann M'orzz / Miss Martian (voice) |
| Masasa Moyo | .... | Karen Beecher / Bumblebee (voice) |
| Nolan North | .... | Conner Kent / Superboy / Clark Kent / Superman (voice) |
| Khary Payton | .... | Kaldur'ahm / Black Manta (voice) |
| Maggie Q | .... | Princess Diana / Wonder Woman (voice) |
| Kevin Michael Richardson | .... | John Stewart / Green Lantern / J'onn J'onzz / Martian Manhun (voice) |
| Michael Trucco | .... | Adam Strange (voice) |
| Michael T. Weiss | .... | Nathaniel Adams / Captain Atom (voice) |
| Mae Whitman | .... | Cassie Sandsmark / Wonder Girl (voice) |