Obviously, Harry and James are the main characters. But there could also be Lily, Harry's mother, who would play an important role in his upbringing. Sirius Black might also be around a lot, as he was James's best friend.
Harry and James are the central ones. But don't forget about Petunia and Vernon Dursley. In this fanfic, their relationship with Harry could be very different. Maybe they are more accepting or have a different role to play since James is around. Also, Hagrid could be a regular visitor, bringing magical creatures for Harry to learn about and befriend from a young age.
The main characters would be Harry and Lily. But it's possible that we could also see some appearances from the Marauders in flashbacks. Since Lily was friends with them, they could be part of the backstory. Also, Dumbledore might be involved in some way, perhaps as a guiding figure from afar, still looking out for Harry's well - being and the safety of the wizarding world.
Obviously, Naruto himself would be the main character. Since it's about him growing tails, he's at the center of it all. The Nine - Tails would also play a crucial role. It's the source of his tail growth. And his friends like Sasuke and Sakura are likely to be important too. They'll probably be involved in Naruto's journey and how he deals with his new situation.
Obviously, Harry would be the main character, just in a female form. Hermione would also be a very important character. She could be the one to help Harry understand and navigate the new experiences of being a girl in the wizarding world. Ron might also be there, and his reactions to Harry's transformation could add some interesting dynamics to the story.
One possible plotline could be Harry learning magic from James at an early age, getting a head start on his Hogwarts education. Maybe they go on secret little adventures together in the wizarding world around their home.
The main characters are Harry and Tom. Harry, the boy who lived, and Tom, who could be a complex character in this fanfiction. He might not be the evil Voldemort we know from the original story. Instead, he could be a young wizard with potential for good or bad, and Harry's influence on him is a major part of the story.
Well, clearly Harry and Hermione are the main characters. Harry, the boy who lived, with his courage and natural talent for facing dark magic. And Hermione, the brilliant witch, with her vast knowledge of magic and her logical thinking.
Hermione could be a main supporting character. She might help Harry and Daphne with their studies and magical research. Ron could also be there, providing some comical relief and loyalty to Harry.
The main characters are obviously James, Swat and Harry. Each of them likely has their own distinct personality traits. James might be brave and a bit of a risk - taker. Swat could be more disciplined and trained in combat - related skills. Harry may be intelligent and have some special knowledge or abilities that contribute to the story.
It could be a new dark wizard who targets Harry because of his fame. This wizard might be jealous of Harry's status as the hero who defeated Voldemort and wants to prove himself as more powerful.
Obviously, Harry Potter himself would be a main character. Elrond, who is raising Harry, would also be a central figure. There might also be other elves like Arwen, Elrond's daughter, who could play important roles. Maybe some of Harry's friends from Hogwarts could make appearances in the story, even if it's just in his memories.