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Winnie Cooper Making a Comeback: Who's the Hottest Former Child Star?

Winnie Cooper, look at you now! The girl Kevin Arnold longed for on "The Wonder Years" is all grownup -- and dreamier than ever.

Danica McKellar, the actress who played girl-next-door Cooper on the late-'80s/early-'90s TV classic, is set to return to the small screen in the Syfy TV movie "Tasmanian Devil," according to The Hollywood Reporter.

SODAHEAD SLIDESHOW: See the hottest former child stars. 

But beyond the tube, McKellar is best known for her lethal combination of beauty and brains. After her first career as a child star, McKellar went on to become a summa cum laude math scholar and author of three New York Times bestsellers, "Math Doesn't Suck," "Kiss My Math" and "Hot X: Algebra Exposed." The 36-year-old actress also gave birth to her first baby last year.

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From McKellar to Joseph Gordon-Levitt to Alyssa Milano to Kristen Stewart, let us know: Who's the hottest former child star?