Michael B. Jordan Victor Stone / Cyborg (voice)
Nathan Fillion Hal Jordan / Green Lantern (voice)
Ron Perlman Slade Wilson / Deathstroke (voice)
C. Thomas Howell Professor Eobard 'Zoom' Thawne / Reverse-Flash (voice)
Dana Delany Lois Lane (voice)
Kevin Michael Richardson President of the United States (voice)
Grey DeLisle Nora Allen / Young Barry Allen / Martha Wayne / Joker (voice)
Cary Elwes Orin / Arthur Curry / Aquaman (voice)
Dee Bradley Baker Etrigan the Demon / Top / Canterbury Cricket (voice)
Michael Beach Black Manta (voice)
Justin Chambers Barry Allen / The Flash (voice)
Danny Huston General Sam Lane (voice)
Kevin McKidd Thomas Wayne / Flashpoint Batman (voice)
Geoff Johns Original Story, Executive Producer
Jennifer Hale Iris West / Billy Batson (voice)
Hynden Walch Yo-Yo (voice)
Steve Blum Lex Luthor / Captain Thunder (voice)
Peter Jessop Dr. Vulko (voice)
Kevin Conroy Bruce Wayne / Batman (voice)
James Patrick Stuart Steve Trevor / George "Digger" Harkness / Captain Boomerang / Orm Marius / Ocean Master (voice)
Vanessa Marshall Wonder Woman (voice)
Sam Daly Clark Kent / Kal-El / Superman (voice)
Bruce Timm Executive Producer
Candi Milo Persephone / Pedro Pena (voice)
Danny Jacobs Grifter / Captain Cold (voice)
Jay Oliva Director
Sam Register Executive Producer
Jim Krieg Screenplay
Alan Burnett Executive Producer
Jim Lee Characters
Bobbie Page Executive Producer
James Tucker Producer
Frederik Wiedmann Original Music Composer
Andrea Romano Doris / Central City Newsreader (voice)
Christopher D. Lozinski Editor