He may be the Big Kahuna at the FBI, but Phillip Broyles is by no means the biggest character on Fox's "Fringe."

That role is reserved for Anna Torv, however, according to actor Lance Reddick. Walter (John Noble) is now becoming the central character on the series. And, it's all thanks to an intricate string of secrets leading up to the biggest of all : Peter (Joshua Jackson) is not really Peter.

"We've known [about Peter] for awhile," Reddick explained. "It's just knowing that someone besides Walter knows it now... The question is, what is that going to do to his relationship with Walter? And once Walter's relationship with Peter changes, how is that going to change Walter's character?

"In some ways, I feel like Walter has become -- even more than Olivia (Anna Torv) -- the central character of the show. He's become the thing around which the entire show revolves."

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