There could be new characters introduced as well. Maybe some descendants of Merlin's old allies or enemies. For example, if Merlin had a group of friends who helped him in the past, their descendants might come forward to help or hinder Harry. And of course, the typical Hogwarts professors like Dumbledore would still be part of the story, guiding Harry in his new journey with this special identity.
Well, Harry Potter would be the main character of course, given that he is the 'Son of Merlin' in this fanfic. His friends Ron and Hermione are likely to be important characters too, as they are always by his side in the original series and would probably play significant roles here as well.
Well, clearly Merlin and Harry Potter are the main characters. Merlin, with his powerful magic and wisdom from a different era, and Harry, the boy - who - lived from the modern wizarding world.
Obviously, the main characters would be Merlin, Harry Potter, and probably the founders would be mentioned or play some role in the background. After all, Merlin is from their era.
Obviously, Harry Potter is the main character as it's about him being the 'Son of Death'. His friends Hermione and Ron are likely to be important characters as well. They always play significant roles in Harry's life. Dumbledore might also be a key character, perhaps guiding Harry in understanding his new identity.
Obviously, Harry Potter is a main character. Since he is the son of a dragon in this fanfic, his character development would be central. There might also be his friends like Ron and Hermione. They would probably play important roles in helping Harry understand and deal with his new identity. And perhaps there are some dragon characters as well, like his dragon parent or other dragons that he encounters during his adventures.
Obviously, Harry Potter would be one of the main characters. Since it's about him being the son of a goddess, the goddess herself might be a significant character, even if she only appears in flashbacks or in some ethereal form. His friends like Ron and Hermione would still likely be important as they support him through his discovery and the changes it brings.
Obviously, Harry Potter is the main character as he is the Son of Chaos in this fanfic. His character would likely be different from the original series, having more unpredictable and chaotic traits.
I'm not sure specifically as there could be many different interpretations in fanfics. But generally, it might explore Harry Potter having a connection to Merlin, perhaps inheriting some of Merlin's powers or facing challenges related to that heritage.
There could also be a new villain who is specifically after the Merlin's descendant. This villain would be a major character, constantly creating obstacles and threats for the protagonist. They might have their own motives related to power, revenge or some ancient prophecy.
Dumbledore would be an interesting addition. He has a lot of knowledge and power, and his interaction with Merlin would be fascinating. Ron could also be included for some comic relief and his loyalty would be an asset in any adventure that combines the two universes.
Obviously, Harry Potter himself. And since he's the son of Boreas, there might be some sort of representation of Boreas, perhaps in the form of a spirit or a mentor figure who guides Harry in using his powers.