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Exclusive: ABC's Mistresses Casts JoBeth Williams as Alyssa Milano's Mom

JoBeth Williams

Addison’s Private Practice mom has found a new family.

ABC’s midseason drama Mistresses has tapped JoBeth Williams — aka Addie’s troubled ma Bizzy — to play the mother of Alyssa Milano and Jes Macallan’s characters, TVLine has learned exclusively. READ MORE