His background was a significant fact concerning acting the role out, it becomes perceptive when you look at the language of the play. If it was a Shakespeare play then it wouldn't be as much of a quandary as Shakespeare's Iambic Pentameter has a nostalgic feel, as does most of his play texts but unfortunately this wasn't the case in this play. An example of Helmer being assertive toward Nora is as follows.
Helmer; shouldn't you first understand your place in your own home? Haven't you an infallible guide in such matters, your religion.
Now 300yrs earlier a simmiliar sort of assertiveness by Old Capulet to lady Capulet in Romeo and Juliet regarding their daughter's marriage to Parris would of sounded like this;
Old Capulet; ...Who, raging with thy tears, and they with them,
Without a sudden calm will overset,
The tempest tossed body. How now wife!
Have you delivered to her our decree?
I believe it would have been an easier task to act as Old Capulet than Helmer on the basis that the language doesn't sound like a old fashioned dialect our grandparents parents would have...