Louise Fletcher, perhaps best known as Jack Nicholson's caretaker in One Flew Over the Cuckoo's Nest, has been cast as Pete's mother on Private Practice, TV Guide reports.

The Oscar-winning star, who recently appeared on Heroes as Peter's colleague Dr. Coolidge, will make her first Shondaland appearabce in the ninth episode of the season.

For much more on what's to come on the ABC show this fall, including one major story line in particular, follow the link to check out our Private Practice spoilers section.

SOMETHING WILDER: Louise Fletcher will play Pete's mother this fall.

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