Ibsen's A Doll House

Do any characters besides Nora change over the course of the play, or is it merely our perception of them that changes? Write an essay that answers this question with regard to Torvald, Mrs. Linde, or Krogstad, making sure to explain precisely when, how, and why either the character or our perception of the character changes and how the change affects how the play as a whole works and what it means.