JoBeth Williams Cast as Forbes Montgomery on Private Practice

Ready to meet Addison's family, Private Practice viewers?

As previously reported, the ABC drama is set to delve deeply into this doctor's home life, as Barry Bostwick has already been cast as her father.

Now, we can confirm that JoBeth Williams has landed the role of the Montgomery matriarch, Forbes.

The actress will appear in this season’s 10th episode. The former Oscar nominee was most recently seen on TV in four 2007 episodes of Dexter.