On the season finale of the CBS drama, Alicia (Margulies) made the bold — and risky — decision to leave Lockhart/Gardner to help launch a new firm with her colleague Cary (Matt Czuchry).
"I think the biggest thing [will be] watching [Alicia] realize that her and Cary are not Will (Josh Charles) and Diane (Christine Baranski)," Margulies tells TVGuide.com in the video below. "The uphill battle will constantly be, 'Did I make a mistake?'"
Along with the regret Alicia might face, Margulies adds that her actions could also cause a huge rift with her former bosses.
"There's going to be a lot of tension and a lot of friction and a lot of heartbreak," Margulies says. "Diane and Will will end up feeling, when they find out, like she stabbed them in the back. And she did."
Watch below for more from Margulies about the state of Peter and Alicia's marriage and Alicia's feelings for Will:
The new season of The Good Wife premieres on Sunday, Sept. 29 at 9/8c on CBS.
(Full Disclosure: TVGuide.com is owned by CBS.)
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