Saved by the Bell: Teen Idols Turned ParentsAs the latest to welcome a little one, Elizabeth Berkley joins cast mates Mark-Paul Gosselaar, Tiffani Thiessen and Mario Lopez in expanding her family

  • TIFFANI THIESSEN
 photo | Tiffani Thiessen

Credit: Humberto Carreno/StarTraks

Updated: Tuesday Mar 06, 2012 | 04:00 PM EST By: Kiran Hefa

TIFFANI THIESSEN

Daughter Harper calls the shots at home, and Thiessen and husband Brady Smith are happy to sit back and watch their 2-year-old grow. "She's not a baby anymore. It's funny," said the actress formerly known as Kelly Kapowski. "From the 12-month to the 15-month mark has probably been her biggest stretch of [milestones]."