Here are some guest starring spoilers on who will play Pete's mother on Private Practice. Make sure you tune in to catch Private Practice every Thursday at 10/9c on ABC.
Louise Fletcher, perhaps best known as Jack Nicholson's caretaker in One Flew Over the Cuckoo's Nest, will be playing Pete's mother on Private Practice. She will first appear on the ninth episode of the season.
What will Pete's mom be like? What will she be doing there? Thoughts?