There could also be some minor characters that become more important in this fanfiction. For example, Harry's parents, James and Lily. Since Harry is changing the past, they might have more of a role to play. Or perhaps characters like Sirius Black or Remus Lupin could be involved in different ways due to the changes Harry makes in the past.
Harry Potter for sure. And then, there could be a young local witch or wizard who becomes Harry's friend and helps him understand the North better. Dumbledore might also play a role, perhaps he sends Harry on this mission to the North in the first place. Additionally, there could be some antagonists, like a group of dark wizards who are causing trouble in the North and are opposed to the changes Harry is trying to bring.
The Death Eaters themselves would be affected in an interesting way. Some might welcome Harry with open arms, but others might be suspicious of his sudden change of sides. They might fear that it's a trick by the Order. And within Hogwarts, the students would be in turmoil. Those who idolized Harry would be heartbroken and confused, and there could be a split among the student body depending on who believes Harry's new stance.
Definitely his professors when they were younger. For example, Snape as a student. This would be a strange interaction considering their relationship in Harry's own time. He could also meet Hagrid when he was just starting out at Hogwarts. And there's a good chance he'd run into Sirius and Remus during their school days, and perhaps form new friendships or alliances with them in the past.
Obviously, Harry would be the main character. Since it's about him being a Saiyan. And I think some of his friends from the Harry Potter series might also be important characters, like Hermione and Ron. They could react to Harry's new Saiyan identity in different ways.
Obviously, Harry would be the main character as the title implies. But other characters like Hermione and Ron would also be important. They could either be part of Harry's regime, reluctantly or wholeheartedly, or they could be part of the resistance against his dictatorship.
Obviously, Harry would be the main character. Since it's about him being a playboy, he would be at the center of the story. There might also be his friends like Ron and Hermione. They could play important roles in either supporting or trying to change Harry's playboy ways.
Harry for sure. Then there could be his samurai mentors. Maybe there would also be some characters from the original Harry Potter world who interact with him in this new samurai - influenced life. For example, Hermione might visit him in the samurai village and be amazed at the new skills he has learned.
Harry is the central character for sure. Alongside him, there might be some Kaminoan scientists or military leaders. For example, a Kaminoan scientist who is intrigued by Harry's magic and wants to study it. Or a military leader who sees Harry as a potential asset in their defense against some new threat.
The main characters would surely include Harry Potter. He's the center of the story as he is the one with the Veela aspect. Ginny Weasley could also be a major character. If Harry is a Veela, it would change their relationship dynamics. Additionally, Dumbledore might play a significant role as he would be guiding Harry through this new discovery and helping him understand and control his Veela powers.
Well, Harry is the central figure in this fanfiction idea. Since he is being raised by Hidan, Hidan becomes a crucial character too. Then, there could be characters like Hermione. She might be either very intrigued or very concerned about Harry's new upbringing. And of course, there could be antagonists from both universes. In the Harry Potter world, Voldemort or his followers could still be a threat, and in Hidan's world, there might be some enemies that could cross over into Harry's life in this fanfiction.