Melissa Joan Hart (born April 18, 1976) is an American actress. She is best known for her starring roles as the titular characters in the si…Melissa Joan Hart (born April 18, 1976) is an American actress. She is best known for her starring roles as the titular characters in the sitcoms Clarissa Explains It All (1991–1994), Sabrina the Teenage Witch (1996–2003), and Melissa & Joey (2010–2015). Hart has been married to musician Mark Wilkerson since July 19, 2003; together, they have three sons.