Showtime is yet to announce a premiere date for the second season of United States of Tara.

But star Toni Collette told E! News this week that the series will start to explore the basis for her character's disassociative identity disorder in the near future.

"They will reveal elements of what happened to her this season." Collette said, adding that producers are also working on bringing forth new alters, while creating relationships for the current ones.

"Buck is getting some. It creates all these conflicts, but Tara's not herself when she's Buck. Buck's got his own life, and he'll do what he wants to do."

Does this mean Buck and his new girlfriend, portrayed by Joey Lauren Adams, go to first base? At least, the actress said.

"Perhaps beyond first base."

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