"The West Wing" star Allison Janney has joined the cast of the New Line musical "Hairspray" and made a deal to develop a sitcom at CBS reports Variety.
Janney will play Prudy Pingleton, the overbearing mother of Penny (Amanda Bynes) who believes that dancing and having fun is sinful. Janney has had extensive feature film comedy work over the years including such films as "Private Parts," "Drop Dead Gorgeous", "10 Things I Hate About You", "The Associate", "Primary Colors", "The Object of My Affection", "Six Days, Seven Nights", "Finding Nemo", "Over the Hedge" and acclaimed dramas like "American Beauty", "The Hours" and "The Ice Storm".
Production on the Adam Shankman-directed film begins in September for a Summer 2007 release. Janney made her deal with CBS for a sitcom vehicle that will aim for a Fall 2007 slot.