The narrator: He is a friend of Roderick Usher- the owner of the House of Usher. They were friends since boyhood but it seems like they do not stay in touch as they grow up. Their friendship did not appear to be strong and the only reason he came was that Roderick desperately asked him to pay Roderick a visit. The fact that he was narrating the story but his name was not given can be seen as he plays the role of an outsider in this story. Even in the story when he stated that he saw Madeline Usher in the house, there was no signs that Madeline acknowledge his presence. There are possibilities that Roderick invited the narrator only for him to witness the end of the Ushers.
Roderick Usher : the owner of the house of Usher. He appeared to be terribly troubled about his sister’s health. However, he is said to be suffered from hyperesthesia (hypersensitivity to light, sounds, smells, and tastes), hypochondria (an excessive preoccupation or worry about having a serious illness), and acute anxiety. He invited his childhood- the narrator to come over and “help” him get rid of his depression. Roderick also was described to be very artistically talented (the narrator is impressed with Roderick’s paintings, they sing and play guitar together).
Madeline Usher : Roderick Usher’s twin sister, who has catalepsy. So apparently, she is really ill in term of physical strength. The narrator noted that he does not see her often in the house. The one time he sees her she does not seem to notice the narrator. Madeline may seem like she does not play an important role in the story (she rarely appears), but her existence can always be felt throughout the story as Roderick’s anxiety and fear seems to be evolve about her. Also, in some argument, Madeline is said to not even exist as she could have been Roderick’s figment of imagination. However, this is very highly unlikely since even the narrator sees her and she was put into the coffin by both the narrator and her brother Roderick Usher