There's Mrs. Mooney, the proprietor of the boarding house. She has a big influence on the happenings in the boarding house. Polly, her daughter, is a central figure as her actions and future are a major part of the story. Mr. Doran, a boarder, is also very important. His relationship with Polly and his reaction to the situation created by Mrs. Mooney form a large part of the narrative.
Mrs. Mooney is a main character. She runs the boarding house. Then there is Polly, her daughter. And Mr. Doran, who has a relationship with Polly, is also a main character.
One of the main themes is social class. The boarding house represents a microcosm of different social classes coming together. Another theme could be morality, as seen in the relationships and actions of the characters within the boarding house.
The Burnell sisters are main characters. They are the ones who have the doll house and are at the center of the story.
Nora is the central figure in 'A Doll House' short story. She is the one around whom the story revolves. Torvald, as her husband, is important as he is the one Nora is in a relationship with and against whom she rebels. And Mrs. Linde is also significant as she provides a contrast to Nora in some ways and also helps to move the plot forward through her interactions with Nora.
Well, the most obvious main characters would be the house guest and the host. The house guest could be a traveler, a friend in need of a place to stay, or someone with a mysterious purpose. The host could be a single person, a family member, or a couple. There may also be secondary characters such as a maid or a pet in the house that could add to the story's complexity, but again, this is all based on general assumptions about this type of short story.
There might be the owner of the little house as a main character. This person would be associated with the house and its story.
There could be a group of friends in 'the haunted house short story'. One might be the skeptic, while another is the superstitious one. They all have different reactions to the strange happenings in the house. And sometimes there's an old caretaker who knows some secrets about the place but is reluctant to share them at first.
I'm not sure as I haven't read the story, but I assume the man of the house would be a main character. There might also be his family members like his wife and children.
Since I don't know the exact story, it's hard to say. But it could be a lonely traveler who stumbles upon the house, or a group of kids who are dared to enter it.
I'm not sure as the title doesn't tell us directly, but it could be the former owners of the old house.
Often, there are kids as the main characters. They are usually curious and adventurous.