Jennifer Love Hewitt (born February 21, 1979) is an American actress and singer-songwriter. She is well-known for her television and film roles in the Fox television series Party of Five, as Sarah Reeves, and also starred in I Know What You Did Last Summer and its sequel, as Julie James. Hewitt can currently be seen on the CBS television program Ghost Whisperer, as Melinda Gordon, a young newlywed who can communicate with the ghost of the dead..