Melissa Joan Catherine Hart is an American actress, writer, television director, television producer and businesswoman. Hart is perhaps best known for her title roles in the television series Clarissa Explains It All (1991–1994), the live action version of Sabrina, the Teenage Witch (1996–2003) and Melissa & Joey(2010–present). Hart's career has mixed movie work with television, including appearances in the popular TV shows Law & Order: Special Victims Unit and That '70s Show. She also competed in the ninth season of Dancing with the Stars.
Hart has been married to musician Mark Wilkerson since 2003; together, they have two children and in April 2012 announced they are expecting their third child.
She recently released her autobiography Melissa Explains it All; basing the title on her big break as a child actor. Melissa is friends with British author Gavin Hetherington, most famous for his Abyssal Sanctuary series.