'90s Kids: Then & Now

From My Girl's Anna Chlumsky to Home Improvement's resident teen idol, see how your favorite teen stars have fared over the years


Then: From 1991 until 1998, Thomas played Randy Taylor, the middle child and most mischievous of Tim Allen's sons on Home Improvement – a role that earned him bona fide teen idol status.
Now: After ditching Hollywood for the library – Thomas attended Harvard, Columbia and Scotland's St. Andrews University – JTT is reuniting with his former TV dad for an appearance on Allen's show Last Man Standing. "I never took the fame too seriously," he says. "It was a great period in my life, but it doesn't define me."