In this kind of fanfic, the main characters could be a mix of students and teachers. For students, aside from Harry, Hermione, and Ron, Neville could also be there. He has grown a lot and his inquisitive nature would make him interested in muggle things. Among the teachers, McGonagall might be involved. She is strict but also has a sense of wonder. Her reactions to muggle inventions would be a contrast to her usually no - nonsense attitude. Snape might also be included, and his reactions would likely be full of sarcasm and a bit of disdain at first, but later he might show some hidden admiration for the muggle ingenuity.
In the 'hogwarts reacts to muggle stuff fanfic', the students and teachers might react in different ways. The younger students could be overly excited. They might see a muggle mobile phone and think it's some kind of magical communication device that muggles have invented without magic. They would be eager to play with it. However, the older students and teachers might be more cautious. They might be a bit worried about how these muggle things could potentially affect the wizarding world.
Harry, Hermione, and Ron are very likely to be main characters. They are the central figures in the Hogwarts story and are known for their love of knowledge and reading, so it would make sense for them to be involved in a story about reading books at Hogwarts.
Obviously, Harry Potter himself would be one of the main characters. He's always at the center of things at Hogwarts. Hermione Granger would also be a main character as she is Harry's friend and is very intelligent, she would be trying to solve the problems during the lockdown. Ron Weasley too, as he's part of the trio. And of course, Professor Dumbledore, who would be in charge of handling the lockdown situation and making decisions for the safety of the students and the school.
Well, obviously the main RWBY characters like Ruby, Weiss, Blake and Yang are likely to be involved as they are the central figures in RWBY.
Obviously, the Weasleys themselves would be the main characters. There's Molly and Arthur, the parents. And of course, their kids like Fred, George, Ron, Ginny and the others.
It would be really interesting. The muggle teacher would likely be in for a huge culture shock. They'd be surrounded by magic and magical creatures they never knew existed. For example, they might be terrified of thestrals at first. And teaching students who can do magic with just a wave of a wand would be a challenge as the muggle teacher has to rely on traditional teaching methods.
Obviously, Harry Potter himself would be a central character. Ron and Hermione, his closest friends, would also likely be in it. Ginny, as Harry's love interest, would probably play a significant role too. Other characters like Neville, who has grown into a strong wizard, could also be featured. And of course, we might see some of the old Hogwarts professors, perhaps McGonagall still guiding the school in some way.
Obviously, Harry Potter himself would be the main character. Hermione and Ron would also be important as they are Harry's closest friends and would be involved in his journey as the heir.
In a fanfic, it could be that the wizarding world is trying to bridge the gap between muggles and wizards. So, they actively seek out muggles with exceptional teaching skills. The muggle might have to go through a series of interviews with the Hogwarts staff, where they have to prove that their knowledge and teaching style can benefit the students. Also, they might need to take some basic courses about the wizarding world to avoid any major misunderstandings.
Obviously, Carmelita and Sly Cooper are the main characters. Carmelita is the inspector who is always trying to catch Sly. Sly is the master thief. Their interactions and Carmelita's reactions to Sly's actions are the focus.