TV Guide recently chatted with Heroes Executive Producer and Director, Allan Arkush. The man behind the scenes for the show talked about the upcoming third season, set to premiere on September 15.

Villains will take center stage in the upcoming chapter, aptly titled "Villains."

"It will be really clear who these villains are," said Arkush. "These are not necessarily characters you've met already. Obviously, there's going to be a lot of Sylar."

Will there be a mix of heroes and villains, though?

"One of the things that strikes me as so interesting about the [episode "Company Man"] was when H.R.G. says, 'I'm very comfortable in the morally grey area,'" says Arkush. "Think about that. Just like when Nathan and Linderman were going to destroy New York for reasons they thought were correct. And who on the show seems to be able to make very hard decisions and has grown as a character? One of those people is Angela (Petrelli)."

Overall, Arkush promises, "one of the things that we're going to explore is the very nature of these powers — where they come from, who has them, what the different aspects are of how they each got their powers and how it affects them.

That's going to be a major storyline this year — the actual genetic essence of the power."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.