Stockard Channing was involved in movies.
Stockard Channing ( born Susan Antonia Williams Stockard ; February 13 , 1944 ) is an American stage , film and television actress . She is known for playing Betty Rizzo in the film Grease ( 1978 ) and First Lady Abbey Bartlet on the NBC television series The West Wing ( 1999 -- 2006 ) . She is also known for originating the role of Ouisa Kittredge in the stage and film versions of Six Degrees of Separation , for which she was nominated for a Tony Award and the Academy Award for Best Actress . Her film appearances include The Fortune ( 1975 ) , The Big Bus ( 1976 ) , The Cheap Detective ( 1978 ) , Heartburn ( 1986 ) , Up Close & Personal ( 1996 ) , Practical Magic ( 1998 ) , and Woody Allen 's Anything Else ( 2003 ) .