In this fanfiction, Naruto is the central figure as he is the so - called son of chaos and order. His friends are likely to be main characters too. Sasuke, for instance, could be a key character as his relationship with Naruto often drives the story in the original series. Sakura might also play a significant role. Additionally, there could be some sort of deities or powerful beings representing chaos and order that interact with Naruto throughout the story.
I'm not sure specifically as there can be many different plots in fanfictions with this title. It might involve Naruto having some sort of special connection to the concepts of chaos and order, perhaps being born with powers related to them and having to navigate a world where these opposing forces play a major role in his journey.
There could be Sasuke. Since Naruto's situation changes, Sasuke might play a different role in this fanfic, either as an ally or a rival in a new way. Another might be Kakashi. He could be the one guiding Naruto through his discovery of being the son of chaos.
Obviously, Percy is a main character. Since he is the son of Chaos in this fanfiction, his character development and journey are central to the story.
Another main character could be Chiron. He has always been an important figure in Percy's life. In this fanfiction, he might be the one who first discovers Percy's connection to Chaos and tries to guide him. Or he could be struggling to understand how to deal with Percy's new situation, especially if Percy's powers start to have unforeseen effects on Camp Half - Blood.
Percy Jackson is definitely a main character. He's the one at the center of the 'son of chaos' concept. Then there are his friends from Camp Half - Blood like Annabeth. She might be involved in trying to understand Percy's new situation or helping him in his new adventures. Grover could also be there, being Percy's loyal friend as always.
It's hard to say for sure without reading it, but it could be Naruto and his friends. They are the main characters in the original series, so it's likely they'll play important roles in this fanfiction as well, perhaps trying to combat the chaos.
Obviously Naruto would be one of the main characters. He's the protagonist of the original Naruto series and would likely be at the center of any fanfiction involving the Chaos King. The Chaos King himself is another main character, as the title implies. And Sakura might also be a main character as she is often part of Naruto's group and could play an important role in dealing with the chaos caused by the Chaos King.
Often, Naruto himself is likely to be one of the main characters. He might be drawn to the power of the Blades of Chaos and try to use them for the good of the village.
Obviously Naruto would be one of the main characters. There might also be his usual friends like Sasuke and Sakura. But since it's a fanfiction about him being the heir of chaos, there could be new characters introduced who are related to this chaos aspect, like some ancient beings or a secret clan.
Obviously Naruto would be one of the main characters. But depending on the story, there could be other characters like Sasuke, Sakura, or even some original characters created by the fanfiction author.