It's basic '90s-kid knowledge that before Michelle Trachtenberg was a socialite on Gossip Girl, she was the world's best elementary school spy.
But plenty of other teen stars you'd watch every week on the WB or UPN started their careers as cute child stars as well.
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15 Celebrities Before They Were Famous
Take a look at these actors' humble beginnings, complete with outfits that are so '90s, it's just painful.