There could also be new characters introduced specifically for this fanfiction. Maybe there's a vampire hunter who comes to Hogwarts thinking the vampire is a threat. This character would add a new layer of conflict and intrigue. Additionally, the teachers at Hogwarts, like Dumbledore, would still play significant roles as they try to maintain order in the school while dealing with this new and rather unusual situation.
Obviously, the child is one of the main characters. There might also be some prison guards who play important roles, either as antagonists or those who gradually change their views towards the child. And perhaps some other inmates who interact with the child could also be considered main characters.
Dumbledore might play an important role as well. He would be guiding Harry through this new and strange situation. He could have some secrets about the Lord of Azkaban that he reveals to Harry over time. Also, some of the Azkaban guards or prisoners could become significant characters as Harry tries to reshape Azkaban.
Obviously, Harry Potter himself would be a main character. He would be at the center of any story that involves 'Harry Potter rules Azkaban' as he is the one who is supposed to 'rule' in some way.
Obviously, Harry Potter is one of the main characters. He is likely to be the driving force behind the attempt to get Sirius Black out of Azkaban.
Obviously, Harry Potter himself is the central character. Hermione and Ron would most likely be involved too. They would probably try to find a way to get Harry out of Azkaban. Dumbledore might also play a role, perhaps guiding Hermione and Ron from behind the scenes or even trying to influence the wizarding court to re - evaluate Harry's case.
Obviously, Harry Potter is the central character. He's the one who is wrongly imprisoned in Azkaban.
Perhaps a new dark wizard or witch who has infiltrated the Ministry of Magic and made sure Harry was sent to Azkaban. This antagonist could be working towards a bigger plan to take over the wizarding world and sees Harry as a major threat even when he's locked up.
The main characters in the 'Harry Potter Prisoner of Azkaban' full story include Harry Potter, a young wizard who is facing new challenges in his third year at Hogwarts. Ron Weasley, his red - haired and humorous best friend, and Hermione Granger, the intelligent and studious one. Sirius Black, an escaped prisoner from Azkaban with a mysterious connection to Harry. Professor Lupin, who has his own secrets related to being a werewolf. These characters interact in a world filled with magic, mystery, and danger. Their relationships and actions drive the plot forward, from the fear of Sirius Black to the revelations about his true identity and the use of time - turners to change the course of events.
It could be Harry Potter himself, of course. He might be on a mission to either free someone wrongly imprisoned in Caer Azkaban or to stop a new dark threat emerging from there. Hermione could also be a main character, using her intelligence to figure out the mysteries of Caer Azkaban.
Obviously, Harry Potter would be one of the main characters. And the first vampire would be a central figure too. There might also be characters like Hermione and Ron, who could be involved in the story in different ways. For example, Hermione might be researching about vampires to help Harry understand the situation better.