The Killing Joke Director: Sam Liu Writer: Brian Azzarello Producers: Bruce Timm, Alan Burnett, Sam Register Through DC Comics/Warner Bros. Animation. Distributed by Warner Bros. Pictures Starring the voices of: Kevin Conroy (Batman), Mark Hamill (Joker), Tara Strong (Batgirl/Barbara Gordon), Ray Wise (Commissioner Gordon) Based on Batman: The Killing Joke by Brian Bolland and Alan […]