In my opinion, Nora is a tragic heroine. It seems like she gave up a lot, including her old self to try to make things better for her and her husband Torvald. I would not compare Oedipus or Othello to Nora because I felt more pitty for her than to Othello and Oedipus. That is, because she did not kill to get what she wanted, she simply black mailed but had not intentions of killing anyone but herself. She didn't want to keep living life the way she was knowing she was going to get exposed by Krogstad for borrowing money which was pretty much for Torvald.
I think that Nora is a tragic hero because in a way she is tragic because she doesn't realize how much her husband tries to control her and by trying to help him she hurts him. I think she is a tragic hero like Oedipus because when she did something bad all she was doing was trying to help her husband and in the end that is what frees her from him. Which is a good thing but when this play was written everyone went nuts that Nora didn't come back or something bad happened to her because no one believed that a women would do that and have no misfortune.
Comparing Nora to Oedipus or Othello is extremely difficult. She never tried to claw her eyes out or murder her beloved spouse as an honor killing. However in regards to her being a noble character, i believe that her decisions were all in a noble pursuit. "How Painful and humiliating it would be for Torvald to know that he owed me anything! It would upset our mutual relations together." After she forged the signature which in return saved her husbands life, she did not explain to Torvald what she did because he did not want him to feel like she owed her anything.
In the Story A Doll's House I see Nora as a noble person, but I do not see the story as a tragedy. Nora made a noble choice when she decided to forge the signature for the sake of her husband. Her intentions were pure and not selfish. As the audience you can't help but feel sorry for Nora when she realizes her husband was a complete jerk and didn't truly love her. This story lacks a reversal of fortune which would have created more of a tragedy. The death of someone in the story would have created a tragedy.
In my view, Nora does have some traits of being a tragic heroine. Her fortune turns from “good” to “bad” and she defiantly experiences catharsis. Despite these traits however, she is not a tragic heroine. Her fortune switching from “good” to “bad” is to blame for this. She starts with a fortune that is financially stable and filled with family, but this is in fact bad for her, as she has, “been your (Helmer’s) doll-wife”, meaning she has had no real purpose in life or honor as she has been fully dependent on others her whole life.
I honestly don't see Nora as a tragic heroine. I applaud her for taking care of her husband when he really needed it and protecting his pride but I don't see that alone as heroic and I also don't see a reversal of fortune for her either. I think it is brave of her to set out on her own in the end of her story. I find it very realistic and personally don't believe there is anything climatic about the story, unlike Othello and Oedipus where bothe come to truly tragic endings.
Nora is the heroine of "A Doll's House," but she is not the definition of a tragic hero. She does not have a reversal of fortune from good to bad, in fact, she has a happy ending. She leaves her husband because she realizes he does not truly love her. He is only concerned about his reputation when he finds out she broke the law to save his life. She made huge sacrifices for him, but he was not willing to make even one for her. She leaves him to start her life over and be true to herself, which is a happy ending for her and one that she is satisfied with.
I believe several elements of tragedy can be identified in Nora's life, however, Nora is not a tragic heroine in the classical tradition. She is not destroyed by a fatal flaw in her own character, as did Oedipus and somewhat Othello. Nora begins to demonstrate tremendous courage and the story ends showing her strength and determination. Yes, she lived a tragic life of being controlled and treated like a "Doll" and finally comes out of her shell, but to me, that's not a tragic hero. To be a tragic hero is more than having just a fatal flaw.
I find Nora to have the characteristics of noble person or heroine, but I do not see this story as a tragedy. The conflict of the story comes from Nora's desire to care for a loved one, her husband. He was ill and she forged her father's signature in order to acquire money to move him south so his health could improve. If the story ended with her demise or a substantial loss to her caused by this it could have been tragic. However, it does not. In fact, ensuing events cause her to realize she is but a doll to her husband and has been her whole life in regards to others.
I think that we can make a better argument for Nora than for Othello but I still see Oedipus as the shining example of tragic.