Hermione might also be a main character. She's Harry's clever friend and could be helping him plan the escape, using her vast knowledge of magic and spells. She might be the one coming up with the strategies to avoid detection and deal with any obstacles in their way.
One possible plotline could be Harry using magic in creative ways to evade the authorities as he escapes. For example, he might use a complex series of apparition spells combined with disillusionment charms.
Well, clearly Harry and Snap are the main characters. Harry is likely a well - known character, perhaps from the Harry Potter universe. As for Snap, not sure if it's a new character created specifically for this fanfic or a less - known character from the existing lore. Maybe Snap is Harry's friend or a mentor - like figure, and together they are the focus of the story as they flee Britain.
Obviously, Harry would be one of the main characters. He is the one setting the traps for the purebloods. There might also be some pureblood characters who are the targets of his traps. For example, a well - known pureblood family like the Malfoys could be involved, with Draco Malfoy perhaps being a central pureblood character in the story.
Obviously, Harry Potter would be one of the main characters since it's about him fleeing. Hermione and Ron might also be involved as they are his friends and could either go with him or play a part in his decision to flee.
One possible plotline could be that Harry discovers a hidden magical portal in Hogwarts that leads outside of Britain. Another could be that he fakes his own death and secretly boards a ship bound for a far - off magical land to escape the danger in Britain. Maybe he teams up with some international wizards who help him smuggle out of the country under the guise of a diplomatic mission.
Hermione Granger often remains popular. In alternate fics, she might be portrayed as an even more powerful witch, leading new magical research or changing the way magic is taught. Harry Potter himself is also a common focus, maybe with different powers or a different role in the wizarding world.
Hermione would be a very likely character to help. She's smart and resourceful, and she would use her extensive knowledge of magic to come up with a plan for Harry's escape. Another could be Hagrid. He has a big heart and he's always been fond of Harry. He could provide a means of transportation, like his flying motorcycle or a secret passage he knows of. Also, Sirius Black might be involved. He's Harry's godfather and he would do anything to protect Harry from his family, so he could be a key figure in getting Harry out of that situation.
It's likely that Bella's family members, such as Charlie or Renee, would be important characters too. Their actions or attitudes might be the driving force behind Bella's decision to escape. And who knows, there could be some new characters created specifically for this fanfic that interact with Bella during her escape journey.
Hermione could be a likely helper. She's smart and resourceful, and she would likely believe Harry if he told her his reasons for escaping Dumbledore. She could use her vast knowledge of magic and spells to create distractions or to find ways to bypass Dumbledore's security measures.
Obviously, Harry Potter is the main character as he is the King of Magical Britain in this fanfiction. His friends like Hermione Granger and Ron Weasley are also likely to be important characters. They would probably be his advisors or help him in his various endeavors.