Well, aside from the main trio, characters like Luna Lovegood are quite common. She might offer her unique insights to Harry in his new role. Also, the Weasley family members, especially Ginny, could play important parts. And of course, many fanfictions include the Hogwarts professors such as Flitwick and Sprout, who interact with Harry in different ways as he takes on the role of Hogwarts master.
Obviously, Harry himself is the central character. His friends like Ron and Hermione usually appear as well. The professors such as Dumbledore, McGonagall, and Snape are also common characters. They play important roles in guiding Harry as he grows up at Hogwarts.
In 'harry potter reincarnated fanfiction', Voldemort can be a recurring character. If Harry is reincarnated, Voldemort might sense a strange new threat or an opportunity. Snape could also be there. His complex relationship with Harry could be re - explored in these new incarnations. And of course, Luna Lovegood might make an appearance, with her unique perspective adding an interesting element to the story.
Obviously, Harry Potter himself is a common character. His friends like Hermione Granger and Ron Weasley also often show up. They might accompany Harry on his journey or play important roles in the events that occur during his travels.
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.
Draco Malfoy is often a popular character in these fanfictions. After Hogwarts, he might be trying to redeem himself, or there could be a love story between him and a character like Hermione. His complex past and family history make for interesting storylines. Another popular character could be Neville Longbottom. He has grown so much during his time at Hogwarts, and in fanfiction, he could be a great teacher at Hogwarts, passing on his knowledge of Herbology and his courage to the new students.
Harry Potter himself is also very popular. He could be seen as an older, wiser apprentice passing on his knowledge of fighting dark magic to the new generation of students. His adventures against Voldemort give him a lot of experience to share.
Other main characters could include the ward's new friends at Hogwarts. They could be from different houses and have different personalities. Together, they form a group that helps the ward through various adventures, whether it's exploring the Forbidden Forest or uncovering secrets within the castle walls.
Most likely, the Hogwarts Four would consist of Harry Potter, who is known for his courage and his connection to Voldemort. Hermione Granger, with her vast knowledge of magic and quick thinking. Ron Weasley, who brings loyalty and a sense of humor to the group. And it could be Luna Lovegood as the fourth member. Luna has her own unique perspective on the wizarding world and could add a different flavor to their adventures.
Obviously, Harry Potter himself. Then there would be his friends like Hermione and Ron. They could be his advisors or teachers at Hogwarts. Dumbledore might also make an appearance in the form of a memory or a portrait that gives Harry guidance. And of course, the students of Hogwarts would be important characters too.
Obviously, Harry Potter is the main character. He is the one taking on the role of the guardian. Hermione and Ron usually play important supporting roles as well. They help Harry in his mission to protect Hogwarts with their knowledge and skills.