Often, in 'Harry Potter Gravewalker' fanfiction, there are original characters created specifically for the story. The Gravewalker could have a mentor figure, perhaps an old wizard who has some knowledge about the Gravewalker's powers and the secrets of the afterlife. There could also be antagonists, like dark wizards who want to use the Gravewalker's abilities for their own evil purposes. These characters interact with the familiar Harry Potter characters to create a new and engaging narrative.
The main characters in 'Harry Potter Gravewalker' fanfiction would likely include the Gravewalker, of course. Additionally, there might be members of the Hogwarts faculty. For instance, Professor Dumbledore could play a role, maybe guiding the Gravewalker or trying to understand their true nature. And then there could be a group of students at Hogwarts who get caught up in the Gravewalker's adventures, adding a youthful and inquisitive element to the story.
The Gravewalker is obviously a main character. They are the central figure around which the story revolves. Then there could be Harry Potter himself. Since it's a fanfiction set in the Harry Potter universe, Harry might interact with the Gravewalker, either as an ally or an adversary. Hermione and Ron could also be involved, depending on how the story is crafted.
One interesting idea could be the character development of the Gravewalker. Maybe they start off as an enigma and as the story progresses, we learn about their past, their motives for delving into the realm of the dead. It could also involve a complex relationship with existing Harry Potter characters, like Harry himself. They might team up to solve a mystery that has to do with the afterlife and the secrets it holds.
Since I don't know the exact 'naruto gravewalker fanfiction', it's hard to say for sure. But it could feature Naruto himself as a main character, perhaps he discovers the world of the gravewalker. Or it could be an original character created for this fanfiction who is the central 'gravewalker' figure.
Often, the Gravewalker themselves is a main character. They usually have a mysterious past and special abilities. There could also be characters from the original Game of Thrones series who interact with the Gravewalker. For example, Jon Snow might cross paths with the Gravewalker and they could form an alliance or be at odds. Daenerys could also be involved, perhaps seeing the Gravewalker as a threat to her claim to the Iron Throne.
Hermione could be a main character. As a very intelligent witch, she might assist Harry in his teaching, like helping him prepare complex lessons or providing additional knowledge to the students. For example, when Harry is teaching about ancient spells, Hermione could offer insights from the books she has read.
Hermione could be one. She could come to Degrassi to help Harry. She'd be really good at handling the academic side of things there, like helping students with their studies. And also, she could use her magic knowledge to figure out any magical mysteries.
Hermione Granger would likely be a main character. She could use her vast knowledge to help Harry in his efforts to fix Hogwarts, whether it's researching ancient spells for repairs or coming up with new educational strategies.
Hermione could be there. She would be eager to study the different magics and books in Tamriel. Her intelligence would help Harry navigate the new world.
I'm not entirely sure specifically what 'naruto gravewalker fanfiction' is about as there could be many different interpretations. It might be a fan - made story where the characters in Naruto are involved in some sort of adventure related to graveyards or the undead. Maybe it's about a character who walks among graves and discovers secrets or has special powers in that context.
In addition to the ones mentioned, Dumbledore could be a main character in some fanfictions. He knew Flamel, so he could play an important role in stories about Flamel. Voldemort could also be a main character as he was after the Philosopher's Stone, and his actions could be intertwined with Flamel's story. There could also be original characters created by the fanfiction authors who interact with Flamel and the other known characters.
It could be that Dumbledore plays a more prominent role in this fanfiction. Since it's about 'the truth', perhaps Dumbledore has some secrets that are finally revealed, and he becomes a central figure in guiding Harry towards understanding. Additionally, some minor characters from the original series might be elevated to main characters if they hold key pieces of the truth.