Obviously, Harry Potter himself. Then there would be his friends like Ron and Hermione. They would be there to support Harry and also be amazed by his new powers. Dumbledore would surely be in the story as he is an important figure in Harry's life. And of course, the villains like Voldemort and his Death Eaters who would be the antagonists against Harry's newfound abilities.
In addition to the main characters from the Harry Potter series, there could be some characters related to Flash. Maybe there could be a cameo of Flash himself, perhaps in a vision or a memory that helps Harry understand his powers better. There could also be other characters from the Flash's world that have some connection to Harry's heritage as the son of Flash. And don't forget about the Hogwarts professors, they would play a role in teaching Harry how to control his powers while still being a wizard.
There might be new characters created specifically for this fanfiction. For example, a wizard who has some knowledge about the combination of Flash - like powers and magic and can help Harry train. There could also be some magical creatures that are attracted to Harry's unique powers. And there could be other students at Hogwarts who either become friends or rivals with Harry because of his extraordinary abilities.
Obviously, Harry Potter himself. There could also be a new character who is like a raven - guardian, someone who has been watching over Harry because of his raven heritage. And perhaps some old characters like Hermione and Ron might play a role in helping Harry understand his new identity.
Well, Harry Potter is a given. Hecate, as his mother in this fanfiction concept. His friends Hermione and Ron would be key characters as they always are in Harry's story. There could be magical professors at Hogwarts who notice the changes in Harry due to his new heritage. Additionally, there could be some minor characters from Greek mythology, like nymphs or satyrs, that make an appearance. There might also be some descendants of other gods or goddesses who either befriend or oppose Harry based on his relation to Hecate.
Obviously, Harry Potter himself. Then there would be his friends like Ron and Hermione. They would probably play important roles in helping Harry understand and deal with his new identity as the son of Leonidas. Dumbledore would also be there, perhaps guiding Harry on how to use his newfound heritage for the greater good. And of course, there would be antagonists too. Voldemort would still be the main bad guy, and he might be even more interested in Harry now that he has this unique heritage.
The 'harry potter son of the flash fanfiction' could be a really creative and unique story. It might start with an alternate reality where the magical and superhero worlds collide. Harry, being the son of The Flash, might have a different upbringing. Instead of just the Dursleys, he could be in a world where he has to hide his dual nature - both wizard and speedster. His time at Hogwarts could be filled with challenges as he tries to master both magic and control his super - speed. And there could be a whole new set of villains that are interested in his unique powers.
In this fanfiction, Harry as the son of Flash might have a unique way of using magic. Since Flash has super - speed, Harry could combine that with his magic. For instance, he could cast spells at a super - fast rate that no one else can match. His adventures would be different as he'd be able to get in and out of situations much quicker than normal. He might even be able to outrun dark wizards and their curses.
Well, Archive of Our Own is a great place to start looking for the 'harry potter son of the flash fanfiction'. It has a well - organized tagging system, so you can search for 'Harry Potter' and 'The Flash' related tags. FanFiction.net is also a popular option. There are also some smaller, more niche fanfiction communities that might have it, but those two are the most likely places to find it.
One way this could be possible in fanfiction is through some sort of magical interference or a very strange prophecy. Maybe a powerful dark magic spell was cast long ago that intertwined the fates of Harry Potter's family and Maleficent in a way that made him her son in this alternate universe. Another idea could be that a time - traveling accident occurred, and the timelines got mixed up, leading to this unexpected relationship.
One possible storyline could be Harry growing up in Gotham, learning Batman's ways, and then suddenly discovering his wizarding heritage. He would have to adjust to the magical world while still holding onto his Batman - trained values. Another could be that Batman somehow ends up in the wizarding world and has a relationship there, resulting in Harry. Then the story could focus on how Harry uses his father's skills to combat dark magic.
Another plotline could be that the wizarding world discovers Harry's connection to Arwen and Middle - earth. This causes a stir as they try to understand what it means for their world. Some might fear the unknown powers he could possess, while others see it as an opportunity to expand their magical knowledge. Harry could be caught in the middle of this, trying to prove that his connection to Arwen is a positive thing and that he can use it to protect both his worlds from common threats like dark forces that could exist in both the wizarding world and Middle - earth.
One possible plotline could be Harry struggling to come to terms with his new identity as the Son of Lucifer. He might face internal conflict, wondering if he's doomed to be evil like his supposed father. Another could be the wizarding world's reaction to his revelation. Some might fear him, while others might try to use his power for their own gain.