Potential characters Percy could interact with in 'Percy returns to Goode' fanfiction include the school janitor. He could be an old demigod who has retired from the hero life and now just keeps an eye on things at Goode. Percy might also interact with a group of students who are interested in Greek mythology and start to notice that Percy seems to know a lot more than he should. And of course, there could be some random passerby students who become part of a plot when they accidentally witness some of Percy's demigod powers in action.
He could interact with his old friends at Goode, like Rachel. She has a special connection to the demigod world, and their relationship could be further explored. Also, there might be new teachers or students that Percy meets. Maybe a new student who is actually a demigod in hiding too, and they start to figure out each other's secrets.
In this fanfiction, apart from Percy, we could see his friends from Camp Half - Blood like Tyson. Also, some of the teachers at Goode who might have a more significant role this time. There could be new demigods that Percy meets at Goode. And don't forget the gods or goddesses who might interfere in Percy's life at Goode in some way, for example, Poseidon could give Percy some kind of sign or power boost when he is facing a difficult situation at school.
There could be new characters as well, like a devil mentor figure who teaches Percy about his devil heritage. This character could be ancient and have a lot of knowledge about the devil realm. Or there could be an angelic character who is initially an enemy but later realizes Percy is not fully evil and they end up forming an unlikely alliance.
In addition to Annabeth and his family, he might interact with other demigods he knew before. They could be in awe of his new godlike state. There could also be some characters from the godly realm who are interested in Percy's return. They might want to use his power for their own purposes or they could be there to guide him on how to fully control his newfound abilities.
In this fanfiction, Percy might face new challenges at Goode. Maybe there are new monsters lurking around, or he could be dealing with old enemies who have a new plan. Also, his relationships with his friends at Goode could develop further, like his friendships might get deeper or he could even find a new love interest.
There could be a new bully at Goode who targets Percy because he senses Percy is different. This bully might turn out to have some connection to the mythological world, like being a descendant of a minor god.
In the 'Percy Jackson returns to Goode' fanfiction, it could be that Percy has to face some challenges related to his dual identity. On one hand, he is a normal student at Goode, on the other, he is a demigod. This could lead to some interesting situations where he has to balance between the two worlds. For example, he might have to hide his demigod skills during a school competition but still manage to win in a rather unexpected way. Also, there could be new characters introduced, perhaps a new demigod who also attends Goode and Percy has to team up with them to face a common threat.
The main character is Percy Jackson. Other characters could include Tyson, Percy's cyclops half - brother. Tyson could come to the school and help Percy with any underwater - related issues, like if there was a problem with the school's plumbing that was actually caused by a water - based monster. And there could be a group of students who form a sort of 'Percy Jackson fan club' within the school, always eager to hear his next adventure story.
His old friends like Annabeth could be main characters. She might have been leading the group in Percy's absence and now has to adjust to his return. Grover could also be there, still being Percy's loyal friend and perhaps having some new knowledge about the world of magic and nature.
The main characters are Percy and Annabeth. Percy is a demigod, son of Poseidon, with the ability to control water. Annabeth is also a demigod, daughter of Athena, known for her intelligence and strategic thinking.
There might also be a lost spirit or a demigod who was previously trapped in Tartarus and has managed to survive. This character could share their experiences and skills with Percy, and together they could try to find a way out or at least make the best of their situation in Tartarus.