Typically, the main characters include a muggle who is out of their element in the wizarding world. It could be a middle - aged man who is just going about his daily life when he's suddenly thrust into the magical realm. On the wizarding side, Neville Longbottom can be a main character in such fanfictions. He's friendly and helpful, and he can be a great guide for the muggles. Also, Luna Lovegood might make an appearance, with her unique perspective on both the magical and non - magical, and she can help the muggles understand the wizarding world better.
Often, there's a muggle protagonist. This could be an ordinary person like a schoolteacher or a shopkeeper. And then there would be some well - known Harry Potter characters like Harry himself or Hermione. They act as the bridge between the muggle world and the wizarding world in the story.
In most 'Muggles Meet Harry Potter Fanfiction', you'll find a curious muggle as one of the main characters. This muggle might be a journalist who is always looking for a big story and stumbles upon the wizarding world. Alongside, characters like Ron Weasley are also common. Ron can bring in his humorous and sometimes clumsy nature to interact with the muggles. There could also be a young muggle student who discovers they have a magical relative and then meets characters like Dumbledore.