Dumbledore's ghost might also be a significant character. His wisdom and past experiences could guide Harry in his headmaster duties. Harry might often seek his advice when faced with difficult decisions regarding the school's future and the well - being of its students.
Hermione would probably be one of the main characters. As Harry's friend, she could be a teacher at Hogwarts, perhaps the new Transfiguration teacher. She would offer her intelligence and knowledge to support Harry in running the school.
Well, it depends on the specific fanfic. In a lot of fan - created stories, Harry as the first headmaster often symbolizes a new era at Hogwarts. He could have been elected because of his heroic deeds. He would bring a fresh perspective to the school's management, perhaps emphasizing more on practical magic and real - world applications of spells, as opposed to just theory, based on his own adventures outside the classroom.
Harry is the central figure. But there could be new characters introduced as students or staff. For example, the children of the original characters could be main characters in their own right. Ginny Weasley, Harry's wife, might also be prominently featured, perhaps as the Quidditch coach or in charge of some other aspect of school life. Additionally, old professors like McGonagall could still be around and be important characters.
Another character could be a cologne - making elf. In the wizarding world, there could be elves who specialize in making colognes. This elf could have a special bond with Harry. It could be that the elf was tasked with making a special cologne for Harry's protection from the moment he was born. And as Harry grows, the elf helps him understand the true power of the colognes he has been surrounded with all his life.
Hermione could be one. She might follow Harry to America to continue their adventures together. She could help Harry adjust to the new place with her intelligence and knowledge.
There could be a young and brave goblin warrior who is eager to prove himself in the fight alongside Harry. And perhaps there's a goblin shaman or mage who has special powers and uses them to help in the battles. These goblin characters would each contribute in different ways to the story.
Albus Dumbledore is extremely popular. His complex character and his long history at Hogwarts make him a prime focus in many fanfics. Severus Snape is also very popular as he has a tragic backstory and his time as headmaster was full of intrigue. Minerva McGonagall is beloved too. She is a strong and wise character, and fanfics often explore more of her leadership and personal side during her headmistress days.
Ron could also be there. He might be in charge of something like the Gryffindor Quidditch team or be a part - time teacher teaching the younger students about the magical history of the Weasley family's inventions. His humor and loyalty would be a great addition to the story.
Ron could also be in it. He might initially not believe that Harry is hiding his intelligence, but as the story progresses, he could start to notice little things that Harry does which show his real intelligence. Ron's loyalty to Harry would then play a role in how he reacts to this discovery, either helping Harry keep it a secret or getting frustrated with Harry for not sharing his intelligence more freely.
Hermione would likely be a main character. She might be really confused as to why Harry is suddenly acting less intelligent.
Ron and Hermione would surely be there. Ron might be a bit hesitant at first about Harry raising a dragon, but he would come around to help. Hermione would use her vast knowledge of magic and creatures to assist Harry in taking care of the dragon.