Another main character could be an old and powerful magic teacher. This teacher has vast knowledge of magic and takes it upon himself or herself to guide Harry in his learning journey. They might have a complex past and their own motives for helping Harry, which could add depth to the story.
Obviously, Harry Potter is one of the main characters as it's about him learning magic. He is the central figure around which the story revolves.
Obviously, Harry would be one of the main characters. Since it's about him learning family magic.
Obviously, Harry Potter is the main character as the title implies he is the one learning magic early. But there could also be Hermione and Ron. Hermione might be intrigued by Harry's newfound knowledge and Ron could be both a bit jealous and in awe of Harry's early magical abilities.
Some of the teachers at Hogwarts could be involved as well. Professor McGonagall, for instance, might teach Harry some advanced Transfiguration magic. And Snape, before his death, could have left behind some notes or knowledge about Potions - related magic that Harry discovers and uses to learn more powerful potions and the magic associated with them.
Obviously Harry Potter himself. And there could be an Egyptian wizard or witch as his mentor, someone who has in - depth knowledge of Egyptian magic.
In the 'Harry Learns Alchemy' fanfic, Harry is the central figure. He is on a journey of learning alchemy. Hermione would be a key character as she is very studious and would be eager to help Harry understand the complex concepts of alchemy. There could be a mysterious old wizard who acts as a mentor to Harry in his alchemical studies. And Ron, as Harry's best friend, would be around, maybe not fully understanding alchemy but being supportive in his own way.
There could be his arithmancy teacher as a main character too. This teacher might be strict but also very knowledgeable, guiding Harry through the difficult subject.
Obviously, Harry Potter is a main character as the title suggests. He is the one who is on the journey of learning wandless magic. Hermione Granger could also be an important character. She might be helping Harry research about wandless magic, using her vast knowledge from the library.
Since it's about Harry learning the old ways, Harry Potter is surely one of the main characters. There might also be some old - time wizards or witches who teach him the old ways.
Obviously, Harry Potter himself is a very important character as the story revolves around him learning family magic. His friends like Hermione and Ron might also be important as they could support or help him in his journey of learning this magic.
It could be Dumbledore, even if he's passed away. His portrait or some kind of magical remnant of him might still be able to guide Harry in learning new magic.