Mark-Paul Gosselaar must be drinking from the fountain of youth. The 43-year-old actor has maintained his crush-worthy status since his days as Zack Morris on the popular '90s sitcom Saved by the Bell [1]. In 2016, the adorable father of four [2] returned to the small screen (sporting a glorious beard [3]) in Fox's baseball drama Pitch and we couldn't have been happier. Keep reading to see why Mark-Paul is still a certified heartthrob, then be sure to check out where the rest of the Saved by the Bell stars [4] are today.