Clair Huxtable is one of the main characters in the popular 1980s sitcom 'The Cosby Show'. She is a lawyer and the matriarch of the Huxtable family. Her husband, CLIFF Huxtable, is a doctor. They have four children: Sondra, Denise, Theo, and Vanessa. Theo is the youngest of the Huxtables and is known for his intelligence and wit. Vanessa is the middle child and is often seen as the rebellious one.