Who are the characters of the possibility of evil?

In "The Possibility of Evil" by Shirley Jackson, the main character is Miss Strangeworth, an elderly woman who takes pride in her small-town reputation for being proper and caring. She secretly writes anonymous letters to her neighbors, exposing their perceived moral failings. Other characters include her neighbors, such as the young couple who receive one of her letters, and her friend, Mrs. McAuliffe, who represents the community’s more innocent perspective. The contrast between Miss Strangeworth's facade of goodness and her malicious actions drives the story's tension.