Definitely Harry. He has so many secrets and needs throughout the series, and the Room of Requirement can be a place for him to fulfill those. For example, he might need a safe place to practice advanced defensive magic against Voldemort. Neville Longbottom can also be a common character. He could use the room to grow and study rare magical plants that he discovers are crucial for some kind of protection against dark magic. Draco Malfoy might be in some fanfiction too. He could be using the room to plot against Harry or to find a way to escape the dark path his family has set for him.
Well, Luna Lovegood could be a common character in these fanfictions. She has such an imaginative and open - minded nature that she might use the Room of Requirement to explore other dimensions or to communicate with magical creatures in a more private setting. Ginny Weasley could also be included. She might use the room to practice her powerful magic in secret, away from the over - protective eyes of her brothers. And of course, Dumbledore might be a character in some fanfictions. He could be using the room to store important memories or to plan his long - term strategies against the dark forces, and the main character might stumble upon his secrets in the room.
Characters can interact by simply thinking about what they need. If a character needs a place to hide a precious magical object, they can enter the Room of Requirement and the room will provide a hidden vault. Or if they need a place to practice a difficult spell without being disturbed, the room will create a soundproof area with all the necessary tools.
One popular type of original character is the one who is an outcast in the wizarding world but has a heart of gold. In the context of the secret room, they might be the first to discover a hidden power within it. Also, characters who are related to existing characters in unexpected ways, such as a long - lost cousin of Harry Potter, are quite popular. They can bring new dynamics to the story and the exploration of the secret room.
One interesting plotline could be about a character using the Room of Requirement to hide a powerful and dangerous magical artifact that was thought to be lost. The protagonist has to keep it a secret from both the good and bad wizards while trying to figure out what to do with it. Another could be students using the room to create a secret study group for a very advanced and restricted area of magic, and they have to avoid getting caught by the professors. And a third plotline might be about a character who accidentally discovers a hidden passage in the Room of Requirement that leads to an unknown part of Hogwarts filled with ancient magic and mysteries.
Obviously, Harry Potter himself is very common. He's the central character in the original series, so fanfiction often continues his story or reimagines it. Hermione Granger is also a frequent character. Her intelligence and strong - willed nature make her a great focus for many different storylines. Draco Malfoy is another popular one. Writers like to explore his character further, perhaps showing a more complex side to him than in the original books.
Harry Potter himself is very common. After all, he's the main character in the original series and is likely to be at the center of any apocalyptic events in the fanfiction. Hermione Granger is also frequently seen as she's smart and resourceful, which are great traits in an apocalypse. Ron Weasley is another one, as he's Harry's loyal friend and has his own set of skills.
The new generation of students at Hogwarts are very common in these fanfictions. Characters like Teddy Lupin, who has his own unique backstory being the son of Remus Lupin and Nymphadora Tonks. Also, the Weasley - Potter clan members are frequently seen. And in some fanfictions, there are original characters created by the authors, who interact with the well - known Harry Potter characters and add new dynamics to the story.
Another character that could be common is Charlie Weasley. Since he works with dragons in Romania, he can bring a lot of knowledge about dragons to the fanfiction. He might be called back to Hogwarts to deal with a dragon emergency, or be the one to introduce a new type of dragon to the Hogwarts students.
In some fanfictions, the Room of Requirement becomes a place for character development. For Draco, Hermione, and Harry, it could be a space where they confront their prejudices. Hermione might use the room's magic to show Draco the error of his ways, while Harry tries to find a middle ground. It's an interesting concept that often plays out in different ways in various fanfictions.
The main trio - Harry, Ron, and Hermione - are very common. They are the protagonists of the original story and their presence in Malfoy Manor fanfiction can drive the plot forward. Draco Malfoy is an obvious choice as well, as it is his home. Additionally, Lucius Malfoy could be a prominent character. His role as a Death Eater and a father figure in the Malfoy family can add depth to the story. Some fanfictions might also include Luna Lovegood. Her unique perspective on magic could be useful when dealing with the strange and often dark magic associated with the Malfoy Manor.
Ron Weasley is another character that frequently shows up. His insecurities about his academic abilities compared to Harry and Hermione can be explored further in relation to the owl results. For example, he might be really disappointed if his results are much worse than his friends', or he could be overjoyed if he manages to do better than expected. And of course, Draco Malfoy can also be a central character. His family's expectations and his own desire to outdo the Gryffindors could be tied into his owl results in interesting ways.