There could be new characters introduced. Maybe a being from the void itself, a sort of anti - hero or a misunderstood creature that Percy has to work with. Also, some of the old Gods like Poseidon might play a role. Poseidon could be either worried about his son's new status or trying to use it to his advantage in the complex politics of the Gods.
In addition to the usual suspects, there could be other demigods who are either in awe of Percy's new power or jealous of it. They might try to either help him or undermine him. And there could be some sort of guide or mentor figure from an ancient time, someone who has had experience with the void before and can offer Percy some crucial advice on how to control and use his powers.
Percy Jackson himself would be the main character, obviously. Since he is the God of Matter in this fanfiction. His friends like Annabeth Chase would also likely be important characters. She could be there to support Percy and use her own intelligence to help him understand and control his new powers.
Obviously, Percy Jackson himself would be a main character. Since it's about him being in a god camp. Annabeth Chase is also likely to be a main character as she has always been an important part of Percy's life. Grover, Percy's best friend, would probably be there too. And there might be some new characters, like other god - like beings or powerful demigods in the camp that Percy interacts with.
Annabeth Chase would probably also be an important character. She has always been Percy's close friend and in this fanfiction, she might play a role in helping Percy understand and control his new powers related to the void. She could be the voice of reason when Percy is tempted by the darker aspects of his new identity.
Percy Jackson himself would obviously be a main character since it's a 'Reborn Percy Jackson Fanfiction'. His friends like Annabeth Chase are also likely to be main characters. She could play a crucial role in helping Percy adjust to his new life after being reborn. Grover would probably be there too, still being Percy's loyal friend. And the gods, especially those who have a connection to Percy like Poseidon, would also be important characters as they might have different reactions to Percy's rebirth.
Obviously, Percy will be one of the main characters. Annabeth might also be there, as she often gets involved in Percy's adventures. Grover could be another, as he is Percy's friend and might be there to help Percy deal with the situation of being mistaken for a god. Maybe even some of the gods from the Percy Jackson universe could show up, either to clarify the mistake or to take advantage of it.
Obviously, Percy Jackson himself. Then there would probably be Annabeth, his girlfriend. She could be either supporting him in his new role or be a bit skeptical at first. Grover might also show up, providing some comical relief and maybe some sage advice from his nature - centric perspective. Other gods like Aphrodite would surely be there, either causing trouble or trying to manipulate Percy for her own purposes.
Obviously, Percy Jackson himself. And probably his friends like Annabeth. There might also be new characters unique to the void, like strange creatures or spirits that inhabit that place.
In this fanfiction, Percy Jackson is the central figure as he controls the Styx. But other important characters could be Grover, his satyr friend. Grover has always been there for Percy and could provide support or comical relief. Also, Nico di Angelo could play a significant role. Given his connection to the underworld, he might have some insights or even a conflict with Percy regarding the control of the Styx.
Well, Percy Jackson himself would obviously be the main character. And since it's about being a slave of the gods, gods like Zeus, Poseidon, and Athena could be important characters as well, as they might be the ones either enslaving him or having some role in his enslavement or liberation.
Obviously, Percy Jackson and Kronos are the main characters. Percy is the hero, the son of Poseidon, with his powers over water and his ability to lead. Kronos is the powerful Titan, the main antagonist, with his devious plans to take over the world.