" ANNE-MARIE JOHNSON " She is perhaps best known for her roles as Nadine Hudson–Thomas in What's Happening Now!! (1985–1988), Althea Tibbs in In the Heat of the Night (1988–1993), or her recurring role as fashion designer Donna Cabonna on That's So Raven (2006) during its final season. Johnson is known as a cast member of the FOX sketch comedy television series In Living Color (1993–1994) during its final season, and has had recurring or regular roles in Melrose Place, JAG, Girlfriends and The I