The complete main cast and crew rundown for the Justice League: The Flashpoint Paradox 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: The Flashpoint Paradox from Warner Home Video

Justin Chambers as Flash/Barry Allen
C. Thomas Howell as Professor Zoom/Thawne
Michael B. Jordan as Cyborg/Victor Stone
Kevin McKidd as Batman/Thomas Wayne
Dee Bradley Baker as Etrigan
Steve Blum as Lex Luthor
Kevin Conroy as Batman/Bruce Wayne
Sam Daly as Superman
Dana Delany as Lois Lane
Grey DeLisle Griffin as Nora Allen
Cary Elwes as Aquaman
Nathan Fillion as Green Lantern/Hal Jordan
Jennifer Hale as Iris
Danny Huston as General Lane
Danny Jacobs as Grifter
Peter Jessop as Dr. Vulko
Lex Lang as Captain Atom
Vanessa Marshall as Wonder Woman
Candi Milo as Persephone
Ron Perlman as Deathstroke/Slade
Kevin Michael Richardson as President
Andrea Romano as Doris
James Patrick Stuart as Steve Trevor
Hynden Walch as Yo-Yo

Voice Direction - Andrea Romano
Editor - Christopher D. Lozinski
Music By - Frederick Wiedmann
Based on the DC Comics Characters
Executive Producer - Sam Register
Supervising Producer - James Tucker
Co-Producer - Alan Burnett
Based on the graphic novel "Flashpoint" by Geoff Johns and Andy Kubert published by DC Entertainment
Written by Jim Krieg
Directed By - Jay Oliva

Animation Services - Studio 4C
Lead Character Design - Jon Suzuki
Character Design - Dusty Abell, Jon Suzuki
Storyboard - Yoshiharu Ashino, Brendan Clogher, Chrissy Delk, Tim Divar, Juno Lee, Christina "Kiki" Manrique, Kathryn Marusick, Lauren Montgomery, Doug Murphy, Christina Sotta, Ethan Spaulding, Christie Tseng, Kirk Van Wormer, Adam Van Wyk