Typically, in such a story, there would be the observer of the face in the window as a central figure. This character would be the one through whose eyes we experience the events. There could also be other supporting characters like family members or friends of the observer who might either believe or not believe their story about the face. The person behind the face, if it's not a supernatural entity, could also be a main character with their own motives.
Well, not having read the actual 'the face in the window short story', we can only make assumptions. There could be a protagonist who is the one to first spot the face in the window. This character might be a loner, or just an ordinary person going about their day until this strange event. There could also be a secondary character who is skeptical of the protagonist's claim. And if there is a backstory to the face in the window, there could be a character related to that, for example, someone who has a connection to the place where the window is, and their actions might have led to the face appearing there.
The main plot could potentially revolve around the reaction of the person who sees the face in the window. Maybe it causes fear, curiosity, or sets off a chain of events in their life. It could be a supernatural face, or perhaps it's someone with a hidden agenda. Without reading it, it's hard to be certain.
The main characters are Mort Rainey, a writer, and John Shooter, the man who accuses Mort of plagiarism.
Since I haven't read the actual story, it's hard to say exactly. But it could be the patients in the hospital rooms with a view of the window. Maybe there are also nurses or doctors who interact with the patients and are somehow related to what the patients see or experience through the window.
I'm not sure specifically as I haven't read it in detail, but surely the man by the window is one of the main characters.
The main characters are Vera and Mr. Nuttel.
There might be other characters that she observes from the window. They could be neighbors or passers - by, and while not as central as the woman, they play a role in her story as the objects of her observation.
The main characters are usually a young girl and a visiting gentleman. The girl is the one who tells the story, and the gentleman is the recipient of her rather strange and spooky tale.
Often, there is a central character, perhaps a person in a spooky or isolated place like a schoolteacher or a traveler. This character is the one who has the encounter with the face in the dark. There may also be other minor characters who are mentioned briefly to set the scene, like colleagues or fellow travelers who are not present during the main event.
I'm not sure as the details about the story aren't fully known. But usually in such a story, there would be a protagonist who is the one to encounter the face in the dark.
I'm not entirely sure, but surely the man with the yellow face is one of the main characters, and probably the one who observes or has some connection to this yellow - faced man is also a main character.