Emily Grierson is a round character in this story although we never really get her point of view of things.
The town is also well-developed as a "character" since we have the whole story from the point of view of an unknown townsperson who explains the town's reactions to things as the story unfolds.
In this story, the town is a round character, the South, is forced to change in order to survive after the Civil War.
"The narrator in ‘‘A Rose for Emily’’ notes a change in the character of his town when Jefferson’s Board of Aldermen attempts to collect Emily’s taxes."
While Emily refuses to change or recognize that the world around her is no longer populated by privilged planation owners, she becomes an obstacle to progress.
"The newer generations are further and further away from the antiquated social mores of their forebears. The men who try to collect Emily’s taxes don’t operate under the same code of conduct as their grandfathers and great-grandfathers did. Emily is not a ‘‘damsel in distress’’ to these men; she is a nuisance, a hindrance to progress."
A round character is a major character in a fictional work who encounters conflict and experiences change. They are also fully developed. You should pick the obvious, Emily Grierson. She experiences the loss of her overprotective father, insanity in her family and the constant change in the town around her. It is, in fact, ironic that her resistance to change as the town modernizes is what sets her apart as a developed character. She refuses to be molded by the possibility of change, even resorting to act of murder to keep a loved one close. ewww I said "molded"