Dawnn Lewis (born August 13, 1961) is an American actress and singer who is best known for her roles on sitcoms such as A Different World and in the first season of Hangin' with Mr. Cooper. While Among voice acting roles includes Grim's Granny in The Grim Adventures of Billy & Mandy, LaBarbara Conrad in Futurama, Di Archer in Bruno the Kid, Detective Terri Lee in the 1990's Spider-Man Cartoon, and The X-Man Storm in Marvel: Ultimate Alliance and it's sequel, Marvel: Ultimate Alliance 2.