31. Danica McKellar
Net worth: $6 million* Year retired: 1990s
Where are they now:Mathematician, author and Hallmark movie actor
Danica McKellar played Winnie Cooper, The Wonder Years. This famous sitcom aired between 1988 and 1993. She was thrust in the spotlight, but didn’t stay with it. She voiced Miss Martian Young Justice butshe chose to pursue a different career.

McKellar is a University of California graduate who became a mathematician and has written several best-selling books on mathematics. McKellar is still appearing in Hallmark movies.