Dumbledore could be a central figure in the fanfiction related to the original family. He has always been full of secrets and knowledge. He might have known about the original family all along and could be guiding Harry or other characters to discover the family's significance for a greater purpose, like the final defeat of Voldemort or the preservation of some ancient magic.
Obviously, Harry Potter himself would be a main character. And then perhaps Prince William or Prince Harry could be important characters too. They could be the ones who bridge the gap between the Royal Family and the wizarding world. Hermione and Ron might also be involved, helping Harry to deal with the unique situation of the Royal Family in the wizarding world.
Obviously, Harry Potter would be the central character. But the Addams family members like Gomez and Morticia would play crucial roles as his new family. Wednesday Addams could be an interesting character in relation to Harry. She has her own dark and mysterious side, and she might either be a great friend or a bit of a rival to Harry in this new setting.
A member of the royal family could be a main character as well. For example, a young prince or princess who discovers their magical abilities or is drawn into the wizarding world. They would have to learn to balance their royal duties with their newfound magical identity. And then there could be a wizard or witch who acts as a guide for this royal person, like a Hogwarts professor or an Auror.
Obviously, Harry Potter himself could be one of the main characters. He has a lot of untapped potential in terms of family magic that could be explored. For example, delving deeper into the magic he inherited from his parents.
There might be some new characters created specifically for this fanfiction. They could be people or creatures that Harry meets during his time of being forgotten and they play important roles in his journey. For example, an old wizard living in seclusion who takes Harry under his wing and teaches him things he wouldn't have learned otherwise.
Well, obviously Harry Potter is one of the main characters. And then there are members of the Evans family. Lily Evans, who is Harry's mother, is a key figure. Her parents, who are part of the Evans family, would also be important characters. There might also be other extended family members that the fanfiction writer creates to add more depth to the story.
Snape could also be a central figure. Maybe he discovers Harry's situation early on and has a change of heart. He could secretly guide Harry, teaching him things about magic and the wizarding world that he otherwise wouldn't know, all while still maintaining his aloof exterior.
Neville Longbottom could be a main character. He has always had the potential for great things and in a world without Harry, he would be likely to step into the spotlight. He has the courage and the connection to Hogwarts that could make him a central figure in the fight against evil.
Voldemort would likely still be a main antagonist. He is the one who poses the initial threat to Harry in the first place. His followers, like the Death Eaters, could also be major antagonists, constantly trying to get to Harry even after the Potter family has rescued him.
Hermione could be one. She could come to Degrassi to help Harry. She'd be really good at handling the academic side of things there, like helping students with their studies. And also, she could use her magic knowledge to figure out any magical mysteries.