Mrs. Linde is a friend of Nora’s and is now a widow.
Nora Helmer is the main character and is accused of being a spendthrift.
Torvald Helmer is a bank manager, Nora’s husband, and a father of three children.
Explanation:
In A Doll's House, Nora Helmer is Torvald's "doll-wife” who hides her financial debt from her husband and ultimately abandons him in the wake of understanding that his affection for her is shallow.
Mrs. Linde is a companion of Nora's who is bereft and needing cash. She chooses to wed Krogstad.
Torvald Helmer is inspired by respect and pride to expel his better half in the wake of discovering that she has taken out a generous advance for his well being.
The characters know their place and because of this is makes them live sad lives because they want more than they can get. The outcome of the story is sad and Lennie shouldn't have died but there was no better option.