Batman Arkham City: New behind the scenes feat Mark Hamill as the Joker

To prepare gamers for the May 29th North American launch of Batman: Arkham City Game of the Year Edition, Warner Bros. Interactive Entertainment has released a new behindthescenes video featuring the voice talent of Kevin Conroy (Batman), Mark Hamill (The Joker) and Stana Katic (Talia al Ghul) of ABC s hit TV show Castle. Get a look behind the curtain at the voiceover recording sessions and see the actors discuss the characters they play and how they approach portraying them.