There could also be other characters that play important roles. For example, Flamel's wife, Pernelle Flamel. She might interact with Harry and offer her own insights or help. And Dumbledore could still be in the picture. He has a connection to both Harry and Flamel, and his guidance could be important in this fanfiction.
Obviously, Harry Potter is one of the main characters. He is the boy who lived and has his own story filled with battles against Voldemort. Nicolas Flamel is another main character. He is an ancient and very powerful alchemist who created the Philosopher's Stone.
Depending on how the fanfiction is written, some of Harry's friends like Hermione and Ron might also be involved. They might be curious about Harry's new living situation with Flamel and try to visit him. Their reactions and interactions with Flamel could add more depth to the story.
Obviously, Harry is one of the main characters. And the Flamels, who are very important in the wizarding world. They are known for creating the Philosopher's Stone.
Obviously, Harry Potter would be one of the main characters. Since it's about him saving the Flamels. The Flamels themselves, Nicolas and Perenelle, would also be main characters as they are the ones being saved.
Well, in this fanfiction, Harry might learn a great deal of ancient magic from Flamel. Flamel could teach Harry secrets that were long forgotten. Maybe Harry would be involved in protecting Flamel's Philosopher's Stone in a new way, facing different enemies than in the original story.
Dumbledore could also be a major character. As the headmaster of Hogwarts, he has a big influence on Harry's life at the school. And maybe some of the Hogwarts ghosts like Nearly Headless Nick would play significant roles in the story as well.
Obviously, Harry Potter is one of the main characters. He is the one who is living with the Greengrass family.
Harry Potter is the main character for sure. In addition, Dumbledore or other Hogwarts professors could make appearances. They might come to check on Harry or give him advice regarding his new life in Potter Manor. There could also be some family members from the Potter family tree, who were thought to be long - gone but now reappear in the form of memories or spirits in the manor.
Hermione could be one. She might follow Harry to the island to help him out. Another could be Ron, his loyal friend. Or it could be some new characters created specifically for this fanfiction, like a wise old wizard who has been living on the island for centuries.
There could be an old French wizard named Alphonse. He might be a mentor to Harry, passing on his knowledge of ancient French magic. Also, a young French witch named Celeste could be a main character. She and Harry could develop a friendship or more, and she could be part of Harry's new life in France, like helping him understand the French magical education system which is different from Hogwarts.
Hermione could be one. She might follow Harry to Australia to continue their adventures together. She could be interested in studying the different magical plants in Australia and how they can be used in potions.
There could be forest animals like wise old owls or friendly squirrels that interact with him.