Kimberly Russell (December 29, 1964) is an American actresses best known for her role as Sarah Nevins on the 1986–1991 sitcom Head of the Class and as Bill Cosby's daughter in the 1990 comedy film Ghost Dad.Other parts include guest appearances on shows including Family Matters, New York Undercover, The John Larroquette Show, Ellen, ER, Strong Medicine, and The Steve Harvey Show.