She speaks both French and German.
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.
Crystal attended Yale University.
Along with her sister, she attended Diane Hill Hardin Young Actors School.
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.