Heather GrahamEXCLUSIVE: Heather Graham (The Hangover) is set for a season-long arc on the upcoming seventh season of Showtime‘s Californication. Additionally, 24 alumna Mary Lynn Rajskub has been tapped for a three-episode arc. Graham will play a woman from Hank’s (David Duchovny) past whose arrival upends his life, while Rajskub will play a neurotic Mary Lynn Rajskubwriter. They join another major new Californication recurring, Michael Imperioli. Production on Season 7′s 12 episodes begins later this month for premiere next year. Graham, repped by Gersh and the Schiff Co., will next be seen in the Sony Pictures Classic release At Any Price and will reprise her role in the third Hangover movie. Rajskub, repped by Levity and Innovative Artists, is a regular panelist on Chelsea Lately and will next be seen in the film Toys House.