Teen Sitcom Stars Who Are Now Parents

When he was wandering the halls of Bayside High, envisioning Zack Morris as a dad seemed highly unlikely. Lo and behold, teen heartthrob Mark-Paul Gosselaar is now (gasp) 38 years old and a father of two. When did they (and we!) get so old?! Today we're paying tribute to 10 of our favorite teen sitcom stars from the '80s and '90s whose most important starring roles are now that of mom or dad.

Sources: Getty Images, Bauer-Griffin Online