Julianna Margulies, Stockard Channing Julianna Margulies, Stockard Channing

Who's ready for a grandma showdown at the Florrick house?

Emmy and Tony winner Stockard Channing has been cast as Alicia's mom on The Good Wife, TVGuide.com has confirmed.

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Channing, 68, will appear in at least one episode later this year as the good wife's "mercurial" parent who is influenced by her 1960s counterculture youth, according to Entertainment Weekly, which first reported the casting. (Now we know where Alicia's brother, Owen, gets his free spirit!) Alicia's mom, and her many marriages, have been referred to often on the show, but she has never been seen on the CBS drama — until now.

Although The Good Wife has always been known for its impressive guest-starring roster, co-creator and executive producer Robert King floated the idea of casting a lesser-known actress in the pivotal part back in 2011. "We're torn on that because we don't want to do the stunt casting for the mom. If we did do it, it might be in the realm of not some high-profile actress, but someone who is very real," King told reporters at the Television Critics Association's Winter preview sessions. But, obviously that was before the former (TV) First Lady came along.

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Channing is best known for her work as fictional FLOTUS Abbey Bartlet on The West Wing, as well as playing Pink Lady Rizzo in Grease.

Here's hoping Channing gets to share some face time opposite Alicia's insufferable, manipulative mother-in-law Jackie (Mary Beth Peil) when she guest-stars.

The Good Wife's new season premieres Sunday at 9/8c on CBS.