Then there are the other members of the Black family, either alive or in portraits. They could be sources of information, guidance, or obstacles for the heir. For example, Walburga Black's portrait might be constantly berating the heir or trying to steer them in a more traditional, dark - leaning direction of the family's history.
The heir of the Black family is the key character, of course. But other characters like Hermione Granger could also be involved. She could help the heir with her vast knowledge of magic. And Dumbledore might also show up, as he has a deep understanding of the wizarding world and could offer advice or warnings to the heir.
Hermione Granger could also be a central figure. Given her thirst for knowledge, she might be the one to first discover the existence of black belt magic in the fanfiction. She would then study it intensively, trying to understand its mechanics and how it can be used for good in the wizarding world.
Dumbledore is often a main character in Harry Potter 1945 fanfiction. Since he was around during that time, many stories explore his youth, his friendships, and his early battles against the dark forces.
In some cases, there might be new original characters created specifically for the fanfiction. These could be characters who have a connection to the ancient magic of Merlin and Morgana. For example, a mysterious wizard who has been guarding an artifact related to their power. They could initially be an enigma to Harry and his friends, but as the story progresses, they become an important part of the plot, either as an ally or an adversary.
I'm sorry, without actually reading it, it's hard to say for sure. But it might include characters related to the Black family like Sirius Black or Narcissa Malfoy, and of course, the new 'black heir' character who would be central to the story.
Often, Harry Potter himself might be a main character in such fanfiction. The idea of him having some daywalker - like abilities could be explored, perhaps as a result of a strange encounter or a new form of magic. Hermione Granger could also be a key character, using her intelligence to help Harry understand and control his new powers if he were to become a daywalker.
Some fanfictions might also focus on lesser - known characters from the Sacred 28 families. Maybe a minor Prewett or a Weasley relative that we don't know much about in the original books. They could be given a more prominent role, perhaps as a hero or a villain within the Sacred 28 - related storylines.
Voldemort can be a major character in such fanfiction. Picture him with a dark and menacing saber, adding an extra layer of threat. Ron might also be there, and his loyalty to his friends could be tested in saber - related adventures, like when they are on a quest to find a powerful saber or defend against saber - wielding enemies.
The Prince, whoever he may be in the fanfiction's interpretation, is obviously a main character. His backstory, his intentions, and his influence on the other characters are what drive much of the plot. Additionally, Dumbledore might also be a significant character as he often has a role to play in the overarching story of the wizarding world and could be involved in the events related to the Prince.
There might be new or less - explored characters in the primal fanfiction. For instance, some ancient wizard families' descendants could be brought to the forefront, and their connection to the primal magic in the Harry Potter universe could be explored in depth. These characters could interact with the well - known characters like Harry, Hermione, and Ron, creating new and exciting storylines.