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

Justice League: Doom from Warner Home Video

Kevin Conroy as Batman
Tim Daly as Superman
Susan Eisenberg as Wonder Woman
Nathan Fillion as Green Lantern
Carl Lumbly as Martian Manhunter
Michael Rosenbaum as Flash
Bumper Robinson as Cyborg

Carlos Alazraqui as Bane
Claudia Black as Cheetah
Paul Blackthorne as Metallo
Olivia D'Abo as Star Sapphire
Alexis Denisof as Mirror Master
Phil Morris as Vandal Savage

Dee Bradley Baker as Officer in Charge
Grey DeLisle as Lois Lane
Robin Atkin Downes as Alfred
Brian George as Mayor
Danny Jacobs as Agent Porter
David Kaufman as Jimmy Olsen
Juliet Landau as Ten
Jim Meskimen as King
Andrea Romano as Batcomputer
Bruce Timm as Ace

Voice Direction - Andrea Romano
Editor - Christopher D. Lozinski
Music By - Christopher Drake
Based on the DC Comics Characters
Executive Producers - Sam Register, Bruce Timm
Co-Producer - Alan Burnett
Written by - Dwayne McDuffie
Produced and Directed By - Lauren Montgomery
Lead Character Design - Phil Bourassa
Character Design - Dusty Abell, Brendan Clogher, Jon Suzuki, Junpei Takayama
Animation Services - Telecom Animation Film Co., LTD.