Speaking with a room full of journalists including CBR at New York Comic Con, William Shatner discussed his upcoming voice role as one of the Dark Knight's classic enemies at length, promoting the upcoming release of the direct-to-video animated movie Batman vs. Two-Face. During the course of the interview, Shatner took the conversation to a dark place, as he compared finding the voice for Two-Face to understanding the psyche of the shooter responsible for the recent massacre in Las Vegas.

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Asked what it took for him to get into the head of the scarred district attorney gone bad, Shatner had an unexpected response. "Well, it’s a cartoon...but if you take the question seriously, there are many voices in our psyche, my mind keeps going back to the guy in Las Vegas," he replied. "A mild-mannered guy, apparently. Never got a parking ticket. And what was he thinking, what was he doing, what was going on in his head as he was spraying those bullets around? This mild-mannered guy — what are the voices [in his head]? Obviously, some totally sick — I’m trying to find a word that would apply to that kind of illness, where it’s so devoid of humanity…that it’s incomprehensible. So what’s going on in his head…how do you do that, what are these voices saying? And if you take the question seriously, that’s what’s going on in this ill person, the struggle between good and evil."

The direct-to-video animated feature marks Adam West’s final performance as Batman. The actor, who passed away June 9 at age 88, is best known for his portrayal of the Caped Crusader on the live-action '60s series. However, he also voiced the character on such animated series as New Adventures of Batman, Super Friends: The Legendary Super Powers Show and The Super Powers Team: Galactic Guardians. The feature marks the first time West and Shatner worked together since the 1960s.

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Batman vs. Two-Face stars the voices of Adam West as Batman, Burt Ward as Robin, Julie Newmar as Catwoman, William Shatner as Two-Face, Steven Weber as Alfred, Jim Ward as Commissioner Gordon, Thomas Lennon as Chief O’Hara and Lynne Marie Stewart as Aunt Harriet. It arrives Oct. 17 on Blu-ray and DVD.