Stockard Channing (born February 13, 1944) is an American stage, film and television actress. She is known for her portrayal of First Lady Abbey Bartlet in the NBC television series The West Wing; for playing Betty Rizzo in the film Grease; and for her role in both the stage and screen versions of Six Degrees of Separation.

Description above from the Wikipedia article Stockard Channing, licensed under CC-BY-SA, full list of contributors on Wikipedia.