Mindy Lee Sterling (born July 11, 1953) is an American actress, voice actress and comedian. Among her most prominent roles are Frau Farbissina in the Austin Powers series of comedy films, Principal Susan Skidmore on the Disney Channel series A.N.T. Farm, Ms. Endive in the Cartoon Network series Chowder, and on Nickelodeon as Lin Beifong in The Legend of Korra, and Miss Francine Briggs on iCarly.