Melissa Joan Hart, Husband Mark Wilkerson Do Couples Therapy
A work in progress. Melissa Joan Hart and husband Mark Wilkerson still put plenty of effort into keeping their marriage strong after nearly 20 years. You know, its a lot of work, the Sabrina the Teenage Witch alum, 46, told Us Weekly exclusively at 90s Con in Hartford, Connecticut, on Saturday, March 18. [Officially] 20