Most likely, the main characters would include the haunted angel itself. And of course, characters from Twilight like Bella, Edward, and Jacob are likely to be part of it as well. They would interact with the angel in different ways, depending on the nature of the fanfiction.
Since it's fanfiction, it could vary a lot. But potentially, there would be the angel character who is in the attic. There might also be some of the main Twilight characters like Edward or Bella who interact with this angel in some way.
There could be a powerful devil king and a high - ranking angel as the main characters. The devil might be trying to spread chaos in the twilight realm while the angel is striving to maintain order. And there might be side characters who are affected by their actions, like the local inhabitants of this twilight world.
One interesting plot could be the haunted angel's interaction with the Twilight characters in a way that reveals hidden secrets of the Twilight world. Maybe the angel has a past connection to one of the main characters and this connection stirs up new events and emotions.
Another option could be Jacob. As a werewolf, he has a connection to the spiritual side of the Twilight world. He might be the one to discover the hauntings first and have to figure out how to deal with them, especially if they pose a threat to his pack or the people he cares about in Forks.
The main characters are likely to be the ones from the original 'Twilight' like Bella, Edward, and Jacob. In fanfiction, they might be portrayed in different lights or with different personalities.
Well, of course, the phantom angel is often a main character. It's the centerpiece around which the story usually revolves.
Well, Percy is obviously the main character. But often, his friends like Annabeth might also be important characters. They could either be aware of his angelic nature or be in the dark about it.
Obviously Naruto would be the main character as the title implies. But there could also be other characters like Sasuke who might be influenced by Naruto's angelic transformation. Sakura could also be there, perhaps helping Naruto understand and control his new angel powers.
Typically, the main characters would include Bella, Edward, and the other members of the Cullen family. Since it's a Twilight - related fanfiction, they are likely to be central to the story. However, new characters might also be introduced, perhaps someone who is related to the Twilight Key in a special way, like a guardian or a seeker of the key.
Well, it could be a new vampire that the author has created. This vampire might be a loner, living in the shadows away from the main vampire clans in Twilight. Another could be a human character who stumbles upon this hidden vampire world.