- Nora Helmer – wife of Torvald, mother of three, living out the ideal of the 19th century wife, but leaves her family at the end of the play.
- Torvald Helmer – Nora's husband, a newly promoted bank manager, suffocates but professes to be enamoured of his wife.
- Dr. Rank – Rich family friend, who is secretly in love with Nora. He is terminally ill, and it is implied that his "tuberculosis of the spine" originates from a venereal disease contracted by his father.
- Christine Linde – Nora's old school friend, widowed, seeking employment (named Kristine in the original Norwegian text). She was in a relationship with Krogstad prior to the play's setting.
- Nils Krogstad – Employee at Torvald's bank, single father, pushed to desperation. A supposed scoundrel, he is revealed to be a long-lost lover of Kristine.
- The Children – Nora and Torvald's children: Ivar, Bobby and Emmy.
- Anne Marie – Nora's former nanny, now cares for the children.
- Helene – The Helmers' maid.
- The Porter – Delivers a Christmas Tree to the Helmer household at the beginning of the play.
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