Bella and Elena are the stars. They might have a mentor figure in the fanfiction, someone who helps them understand their unique situation, whether it's related to their powers (if there are any in the story) or their family secrets. And there could be antagonists too, like a jealous relative or a person who wants to use their special connection for their own gain.
The main characters are Bella and Elena. In some fanfictions, they could have a love interest each. For example, Bella might have a charming boy-next - door type of love interest, while Elena could be attracted to a more mysterious, brooding character. These love interests could add another layer of drama and story development to the fanfiction.
One interesting plot could be that Bella and Elena discover they have a long - lost family connection that ties them to a mysterious supernatural heritage. This could lead them on an adventure to uncover the secrets of their past.
If it's a more modern - day or non - supernatural setting, Bella's parents could be main characters. They might be overjoyed at the birth of their grandchildren and be actively involved in their upbringing. They could provide financial support or just be there for emotional support for Bella, especially during the tough early days of raising twins.
In this fanfiction, Bella is likely the main focus. Because the whole premise is about Elena being jealous of Bella, which implies that Bella is at the center of whatever relationship or situation is going on with Damon. Elena's jealousy is directed towards Bella, so the story would probably revolve around Bella and how she deals with Elena's jealousy and her relationship with Damon.
Edward would be an obvious choice as a main supporting character. He would be there for Bella, sharing in her joys and fears, and helping with all the preparations for the twins. Another could be Alice. She might use her ability to foresee things to help Bella prepare for any challenges during the pregnancy.
Edward might be very protective of the twins. Since he has a close relationship with Bella, he would see it as his duty to keep the twins safe from any harm. He could also be interested in seeing if the twins have any special abilities related to his own mind - reading ability.
Well, obviously the Jackson twins themselves are the main characters. They could be named, say, Alex and Max Jackson. They are usually depicted as having a strong bond as siblings.
Well, obviously Harry Potter is one of the main characters. He's the boy who lived, and in this fanfiction, he'll likely be involved in all kinds of adventures with the twins.
By showing them having heart - to - heart conversations. For instance, late at night when they can't sleep, they talk about their dreams, fears and hopes. This can deepen their understanding of each other.
Well, clearly Elena and Klaus are the main characters. Elena is often portrayed as a strong - willed and compassionate human (or vampire depending on the plot of the fanfiction). Klaus, on the other hand, is the complex and powerful original vampire.
Another character that could be important is Elijah. He is often the voice of reason among the Originals. He might try to guide Kol in his relationship with Elena, or he could be against it if he thinks it will bring trouble to their family. So in this fanfiction, he could be a key figure in the development of the Kol - Elena relationship.