Kristine Linde acts as a foil to Nora, highlighting certain character traits which Nora has. Though initially a minor, somewhat insignificant character, Kristine comes to perform a crucial role in the play's eventual plot development. As well as providing an opportunity for Nora to reveal some of her innermost thoughts, Kristine's own revelations concerning Krogstad contribute to exposing Nora's marriage for the sham that it is.
Over the course of the play, Nora and Kristine experience a radical role reversal. Initially, Nora appears to be a blissfully happy married woman, whereas Kristine is a tragic widow, an object of pity. Yet by the time we've reached the end of A Doll's House, all that's changed dramatically. Nora's marriage is in tatters, and Kristine is happily daydreaming about a life of wedded bliss with Krogstad.
The similarities between Nora and Krogstad are few and far between. Both could be described as somewhat naive in the ways of the world. The difference, however, is that...
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