Mark-Paul Gosselaar Now: "Truth Be Told" Instead of playing a high schooler who schemes his way out of homework, Gosselaar will play a professor who piles on the homework. He'll also be riffing on hot-button topics with his best friend, played by Tone Bell, and his wife, played by Vanessa Lachey, while trying not to drool over his porn star babysitter (who, come to think of it, looks a little like Bayside High's Tiffani Thiessen).