 | Matt Ryan als John Constantine (voice) |
 | Jerry O'Connell als Clark Kent / Superman (voice) |
 | Taissa Farmiga als Rachel Roth / Raven (voice) |
 | Jason O'Mara als Bruce Wayne / Batman (voice) |
 | Rosario Dawson als Diana Prince / Wonder Woman (voice) |
 | Stuart Allan als Damian Wayne / Robin (voice) |
 | Rebecca Romijn als Lois Lane (voice) |
 | Rainn Wilson als Lex Luthor (voice) |
 | Tony Todd als Darkseid (voice) |
 | Shemar Moore als Victor Stone / Cyborg (voice) |
 | Christopher Gorham als Barry Allen / The Flash (voice) |
 | Ray Chase als Jason Blood / Etrigan (voice) |
 | Camilla Luddington als Zatanna (voice) |
 | Hynden Walch als Harley Quinn (voice) |
 | Liam McIntyre als Captain Boomerang (voice) |
 | Roger Cross als John Stewart / Green Lantern (voice) / Swamp Thing (voice) |
 | John DiMaggio als King Shark / Trigon (voice) |
 | Sachie Alessio als Lady Shiva (voice) |
 | Matt Lanter als Arthur Curry / Aquaman (voice) |
 | Sean Astin als Billy Batson / Shazam (voice) |
 | Nyambi Nyambi als J'onn J'onzz / Martian Manhunter (voice) |
 | Jon Bernthal als Trigon (voice) |
| Jack Kirby | Characters |
| Matt Peters | Director |
| Christina Sotta | Director |
| Sam Register | Executive Producer |
| James Krieg | Co-Producer |
| Amy McKenna | Producer |
| James Tucker | Executive Producer |
| Frederik Wiedmann | Original Music Composer |
| Melissa Lohman | Production Manager |
| Rob McIntyre | Supervising Sound Editor |
| Aran Tanchum | Foley Mixer |
| Andrew Synowiec | Musician |
| Hyesu Wiedmann | Orchestrator |
| Hyesu Wiedmann | Conductor |
| Mairghread Scott | Story |
| Christopher D. Lozinski | Editor |
| Wes Gleason | Casting |
| Matthew Mahoney | Associate Producer |
| Phil Bourassa | Lead Character Designer |
| Mairghread Scott | Teleplay |
| Ernie Altbacker | Teleplay |
| Jerry Siegel | Characters |
| Joe Shuster | Characters |
| Bob Kane | Characters |
| Bill Finger | Characters |
| William Moulton Marston | Characters |
| Crissy Kikkawa | Assistant Production Manager |
| Alan Moore | Characters |
| Steve Bissette | Characters |
| John Totleben | Characters |
| Jamie Delano | Characters |
| John Ridgway | Characters |
| Marv Wolfman | Characters |
| George Pérez | Characters |
| Paul Dini | Characters |
| Bruce Timm | Characters |
| Karl Kesel | Characters |
| Denny O'Neil | Characters |
| Len Wein | Characters |
| Bernie Wrightson | Characters |
| Gardner Fox | Characters |
| Murphy Anderson | Characters |
| Jarelle Dampier | Storyboard Artist |
