The complete main cast and crew rundown for the Justice League: War direct-to-video animated feature, as listed in the official credits for the new DC Universe Original Movie animated feature, are as follows below.

Justice League: War
from Warner Bros. Home Entertainment

Sean Astin as Shazam
Zach Callison as Billy Batson
Christopher Gorham as Flash/Barry Allen
Justin Kirk as Green Lantern/Hal Jordan
Michelle Monaghan as Wonder Woman
Shemar Moore as Cyborg/Victor Stone
Jason O'Mara as Batman
Alan Tudyk as Superman
Steve Blum as Darkseid
Dee Bradley Baker as Parademons
Melique Berger as Sarah Charles
Kimberly Brooks as Darla
Rocky Carroll as Silas Stone
Ioan Gruffudd as Thomas Morrow
Georgie Kidder as Freddy Freeman
John Mariano as Ice Cream Vendor
Richard McGonagle as President
Matthew Mercer as Guard
George Newbern as Steve Trevor
Andrea Romano as Green Lantern's Ring
Roger Rose as Pinstriped Loudmouth
Gary Sturgis as Teammate #2
Bruce Thomas as Desaad
Hynden Walch as Hannah Grace

Voice Direction - Andrea Romano
Editor - Christopher D. Lozinski
Music By - Kevin Kliesch
Based on the DC Comics Characters
Executive Producer - Sam Register
Supervising Producer - James Tucker
Co-Producer - Alan Burnett
Based on the graphic novel "Justice League: Origin" by Geoff Johns and Jim Lee published by DC Entertainment
Written by Heath Corson
Directed By - Jay Oliva

Animation Services - Moi Animation Services
Lead Character Design - Phil Bourassa
Character Design - Dusty Abell
Storyboard - Brendan Clogher, Tim Divar, Charles Drost, Ben Jones, Christina "Kiki" Manrique, Kathryn Marusick, Christina Sotta, Adam Van Wyk