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

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MARK-PAUL GOSSELAAR

When it comes to making professional decisions, Gosselaar, who played troublemaker Zack Morris, draws inspiration from his two children, son Michael, 8, and daughter Ava, 6. "It can be difficult to balance my career and my family, but my family always comes first," says the actor, who married ad exec Catriona McGinn in July (his kids are from a previous marriage to actress Lisa Russell). "Having children has made me mature in ways that I think are positive to my career, and yes, my family does affect the type of work that I accept."