Bruce Wayne is Batman. He became Batman the instant his parents were murdered. Batman needs Bruce, however hollow that identity feels to him from time to time. Bruce keeps Batman human.
To me, Batman is definately Bruce Wayne's darker side. The challenge is playing it as two separate aspects of the same person. I have to create the illusion of a Dark Knight, who's mysterious and strong.
I love doing the voice of Batman because of the quality of the animation. The music is particularly incredible. Another bonus is getting the opportunity to work with some very respected actors who do not usually do voice work.
People fantasize about being a hero and helping someone in trouble. Batman is that fantasy realized-not just for Bruce Wayne, but for the audience. Inwardly, Bruce Wayne is still an adolescent watching his parents being murdered. That will never leave him. And people really relate to that.