Mary Kay Bergman (June 5, 1961 – November 11, 1999) was an American voice and television actress who voiced D.W., Francine, Muffy, Prunella, Sue Ellen, and Brain in the Microsoft Arthur CD-ROM Games.
Her other roles include two of the Bimbettes in Disney's Beauty and the Beast, Timmy Turner in the Oh Yeah Cartoons, Sherry in Family Guy, the female characters on South Park, and Jay Jay, Herky, Revvin Evan, and Savannah in the first two seasons of Jay Jay the Jet Plane.