Obviously, Harry Potter and Regulus Black are the main ones. Harry as the boy who lived, and Regulus as his guardian, would be central to the story. Their relationship would be explored deeply.
Dumbledore would still be a key figure. He would likely keep an eye on Harry, even if he's being raised by Regulus. His guidance and wisdom would still play a role in Harry's life. Also, other characters like Hermione and Ron might have different relationships with Harry, perhaps being more curious about his different upbringing.
Well, Harry Potter is the central figure, but the Weasley siblings are key too. Fred and George could be like his fun - loving older brothers, teaching him all kinds of mischievous spells and pranks. Ginny would be like a sister, and their relationship could develop in a really interesting way. And Percy, despite his differences from the rest of the family, would also be an important character as Harry would be part of the family dynamic that Percy is also a part of.
Obviously, Harry Potter is the central character. But in this fanfiction, 'life' could be personified as an important character too. It might be some sort of spirit or entity that has a big influence on Harry's upbringing.
Harry, of course, is central. Sirius is likely to be like a father figure to him. Bellatrix Lestrange could be an interesting character in this scenario. Although she's a bit of a dark character, her presence in the Black family and her strong beliefs could create a lot of drama and conflict. Also, Kreacher, the house - elf of the Black family, would be around Harry a lot, and their relationship could develop in unique ways compared to the original story.
A third plotline could be how Harry's Hogwarts experience is different. He might have different knowledge and skills compared to the original story. For instance, he could be more proficient in certain areas of magic that Regulus specialized in, like ancient runes or potion - making. This would give him an edge in his classes and adventures at Hogwarts.
Well, depending on what 'rq' stands for, it could be a group of original characters created for the fanfiction. Maybe there's a wise old wizard who takes Harry under his wing as part of this 'rq' upbringing.
Obviously, Harry Potter and the Mad Hatter. But there could also be other characters from the Harry Potter universe making appearances. Maybe Dumbledore would come to check on Harry and be completely bewildered by the Mad Hatter's ways. And of course, there could be some of the Wonderland characters popping up too, like the March Hare or the Cheshire Cat, adding more chaos to Harry's life.
The main characters in 'Harry Potter raised by Winchesters' fanfiction would have some interesting interactions. Harry would surely have a lot of interaction with the Winchesters' enemies as well. Demons and other supernatural beings that the Winchesters fight would see Harry as a new target or a strange addition to the mix. In the wizarding world, Harry might interact with Snape in a more confrontational way, as his upbringing by the Winchesters could make him less patient with Snape's attitude. Also, new characters from the cross - over of the two universes could be created, and Harry would be at the center of those interactions.
Obviously, Harry Potter himself would be a main character. And the Weeping Angels would play a huge role too, acting as his guardians or captors depending on how the story is written. There might also be some Hogwarts professors who try to rescue Harry or understand his situation.
At first, it might be a bit of a rocky start. Harry, having grown up without a proper family, could be wary of Regulus. But as time passes, he starts to see Regulus as a father figure. Regulus, on the other hand, is determined to make up for his past mistakes by raising Harry right. So he showers Harry with care and magical knowledge, and they gradually form a strong bond.
Fanfiction about these three can take many forms. For example, there could be time - travel fics where Harry goes back in time and meets Regulus and Sirius when they were younger. This could lead to all sorts of interesting plot twists, like Harry trying to prevent Regulus from joining the Death Eaters in the first place. Or it could be a fic where Sirius survives and he and Harry explore the secrets of the Black family together, including things that Regulus left behind. There are also fics that focus on the emotional bonds between the characters, showing how the different personalities of Regulus, Sirius, and Harry interact and influence each other.