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She speaks both French and German.
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In 1989, she was nominated for a Young Artist Award, In the "Best Young Actress Guest Staring in a Television Series" catagory for her performance in Paradise.
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Crystal attended Yale University.
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Along with her sister, she attended Diane Hill Hardin Young Actors School.
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Originally auditioned for the part of "Winnie" on "The Wonder Years" (1988); a part her sister Danica was chosen for. However, the directors liked her so much they gave her a recurring character on the show.