Narrative and structural theories study the components of novel, the most prominent of which is the “Novel Character " component, as it is the first thing that occupies the writer's mind at the starting of the novel. The novelist uses some characters to express what is on its mind of imagines to embody the idea, and through the characters of the novel, the reader can understand the events and the course of the narrative work.
Eslam Abdullah Neamat (Tue,) studied this question.