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

Batman: Assault on Arkham
from Warner Bros. Home Entertainment

Kevin Conroy as Batman
Neal McDonough as Deadshot
Hynden Walch as Harley Quinn
Matthew Gray Gubler as Riddler
Troy Baker as Joker
Eric Bauza as Security Guy
Chris Cox as Gordon
John DiMaggio as King Shark
Greg Ellis as Captain Boomerang
Giancarlo Esposito as Black Spider
Jennifer Hale as Killer Frost
Martin Jarvis as Alfred
Peter Jessop as Watch Commander
Christian Lanz as Scarecrow
Nolan North as Cobblepot
CCH Pounder as Amanda Waller
Andrea Romano as Woman
Travis Willingham as Morgue Guy
Mick Wingert as Joker Security Guy

Voice Direction - Andrea Romano
Editor - Christopher D. Lozinski
Music By - Robert J. Kral
Based on the DC Comics Characters
Executive Producer - Sam Register
Executive Producers - Benjamin Melniker, Michael Uslan
Supervising Producer - James Tucker
Co-Producer - Alan Burnett
Based upon characters appearing in comic books published by DC Entertainment
Written by Heath Corson
Directed By - Jay Oliva, Ethan Spaulding

Animation Services - Moi Animation Studios
Lead Character Design - Jon Suzuki
Character Design - Steve Jones
Storyboard - Jennifer Bennett, Christopher Berkeley, Jake Castorena, Brendan Clogher, Sam Liu, Christina "Kiki" Manrique, Kathryn Marusik, Rick Morales, Matt Peters, Christina Sotta, Adam Van Wyk