Well, in a 'Harry Potter Hospital Wing' fanfic, aside from the regular students, we might see some of the teachers. For instance, Professor Snape might be forced to visit the hospital wing to get some potion ingredients that are only stored there. And then there are the ghosts, like Nearly Headless Nick, who could be haunting the hospital wing and interacting with the patients in a rather spooky way. There could also be new characters created specifically for the fanfic, like a young healer in training who has some unique magical abilities related to healing.
Obviously, Madam Pomfrey is a key character as she runs the hospital wing. Harry, Ron, and Hermione could also be characters, perhaps they visit a friend who is ill. There could also be some minor characters like Neville who might get injured during a Herbology class and end up in the hospital wing.
Obviously, Harry, Hermione, and Ron could be main characters. They often get into trouble and end up in the Hospital Wing. They could be there to visit an injured friend or because they themselves are injured. Neville could also be a main character, maybe he discovers some new plants that have healing properties in the Hospital Wing.
One plot could be that a group of students get injured during a particularly dangerous Quidditch match and they all end up in the hospital wing together. While there, they discover a hidden passage or a secret about the castle that has been long forgotten. They then have to figure out what to do with this newfound knowledge while still recovering from their injuries.
Hermione would surely visit. She'd be there with a stack of books, ready to help Harry catch up on his studies while he recovers. And Ron would be right beside her, probably with some treats from the Hogwarts kitchen.
Well, there could be doctors like Dr. Smith, a brilliant surgeon. Nurses such as Nurse Johnson, who is very kind but strict about following procedures. There might also be patients like Mr. Brown, a friendly old man with a heart condition. And don't forget the hospital administrators like Ms. Davis who is always trying to keep the hospital running smoothly.
In fanfiction, Harry Potter in the hospital wing might have strange visions. Maybe he sees the memories of other Hogwarts students who were once treated there. It could be a way for the author to introduce some hidden lore or backstories of the school.
A new young teacher at Hogwarts. She could be a prodigy in Transfiguration, having mastered some really advanced spells at a young age. She brings a fresh perspective to teaching and has a bit of a rivalry with McGonagall in the fanfic. She might also have a mysterious past that is gradually revealed throughout the story.
Obviously, Harry Potter himself. Then there could be some Canadian - born witches and wizards as his friends. Maybe a tough - as - nails girl from the Yukon who is an expert at ice magic. And a laid - back boy from Vancouver who has a special talent for communicating with magical forest animals.
Obviously, Harry Potter himself. There could also be some Beautox - natives, like a wizard or witch who is an expert in Beautox magic. Maybe Hermione would somehow find a way to follow Harry and she'd be there too, trying to figure out the new magic system.
Obviously, Harry Potter himself is a central character. His wife, whether it's Ginny or in some alternate scenarios someone else, would also be very important. Then there are his friends like Ron and Hermione. They would likely be the baby's godparents or play important roles in the baby's life. Dumbledore, even though he's passed away, might still have an influence through his wisdom left behind. And of course, there could be new characters created specifically for the fanfic, such as a nanny or a tutor for the baby with some unique magical skills.
Obviously, Harry himself as the son of Atlas. Then there could be the original characters like Dumbledore, who might play a role in guiding Harry about his new identity. Hermione would still be there, probably helping Harry research about Atlas. And Ron, as Harry's friend, would be involved in his adventures.