Hermione is often a common character. She would be there to support Harry in his journey as the heir, using her vast knowledge of magic to help him understand the implications of his new status.
Ron is also a typical character. He might be a bit in awe of Harry's newfound status at first but then stands by his side through thick and thin, providing his loyalty and his Weasley - family - like sense of humor in the story.
Dumbledore usually plays a role too. He could be guiding Harry, having known about his heir status all along. He would offer wisdom and help Harry navigate the complex political and magical situations that come with being the heir of Hogwarts.
Well, it depends on the specific fanfiction. Some authors might make Harry the heir as part of a grand plot. For example, they could tie it to an ancient prophecy or a hidden power within the school. This can lead to new adventures and challenges for Harry, as he discovers his new role and the responsibilities that come with it.
In the fanfiction world, Harry might be the heir to Hogwarts if there was some sort of magical pact made generations ago. For example, perhaps one of his ancestors had a special role in the creation or protection of Hogwarts, and this role was passed down through the family. It could also be that his unique magical abilities, like his ability to resist Voldemort's attacks from a young age, are signs of a deeper connection to Hogwarts itself. This connection could be what designates him as the heir in the fanfiction's plot.
The heir themselves would be a main character, of course. And Harry Potter might still play a role, either as a friend or a rival to the heir. Dumbledore could also be a major character, guiding or observing the heir's journey.
Obviously, Harry Potter himself would be the main character. Hermione and Ron would also be important as they are Harry's closest friends and would be involved in his journey as the heir.
There could be American wizard characters like an American wizard guide who shows Harry around the American wizarding world. This character might introduce Harry to new spells or magical techniques that are different from what he knows in Britain.
Hermione Granger could also be a possible Hogwarts heir. She is extremely intelligent and has a thirst for knowledge about Hogwarts' history and magic. Her Muggle - born status might seem to be a contradiction, but it could also be part of what makes her unique as the heir. She could bring new perspectives and use her vast knowledge to unlock secrets about the heir's role and the future of Hogwarts.
One common plotline is Harry uncovering his heritage as the heir. Another is him facing challenges from those who oppose his new status.
The main character is Harry Potter. There may be Hogwarts professors who play important roles. For instance, Dumbledore could be involved in helping Harry understand his new position. And there could be other students who either support or oppose Harry as he discovers he is the heir to Lady Hogwarts, adding more complexity to the story.
Harry Potter himself is often still a central and popular character. Since it's related to Hogwarts, he might be exploring his potential as the heir. Hermione is also popular as she would be using her intelligence to help the heir understand their role. Another popular one could be Draco Malfoy, as his family's connection to the wizarding world's darker side could add an interesting dynamic to the story.
Often, there are advisers or mentors. These are characters who have a lot of knowledge about the monarchy and its workings. They might be old nobles or wise scholars who help Harry understand the ropes of being the heir. There could also be antagonists like power - hungry nobles who see Harry as a threat to their own ambitions and try to get rid of him.