Percy is bound to be central. Alongside him, some new characters could be introduced. Maybe there are demigods who are against Percy's return because they see him as a threat to their own status. But the main gods would still be major players. They could be portrayed in different lights, some being more desperate to get Percy back than others, which could lead to interesting power struggles among them.
Percy is the key figure. Then there could be the minor gods who have their own reasons for wanting Percy back. They might see this as an opportunity to gain more influence in Olympus. His family members, such as his mother Sally, could also play a role, perhaps being used by the gods as a way to persuade Percy to come back.
Obviously, Percy would be one of the main characters. And of course, the gods would play important roles too. Gods like Zeus, Poseidon, and Athena are likely to be there. Percy's friends from the demigod world, like Annabeth, might also make appearances.
Obviously, Percy Jackson himself. He's the one doing the pranking. Then, there would probably be the gods like Zeus, Poseidon, and Athena who are the targets of his pranks. His friends like Annabeth might also be involved, either helping Percy with the pranks or trying to stop him when they think he's going too far.
Percy is the central figure for sure. The gods, like Hades, might be there too if the story involves issues related to the Underworld. Grover could also play a role. He is Percy's friend and might be there to support Percy when he yells at the gods, or his experiences with the gods could be part of what drives Percy to yell. Chiron, the centaur, could also be a character as he is a mentor to Percy and could have some influence on the situation.
Obviously, Percy is one of the main characters. And then there would be various gods like Zeus, Poseidon, Athena, etc. These gods play important roles in Percy's world and their interactions with him would be central to the story.
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 would be the main character. His character would be very different from the original as his age gives him a whole new perspective.
The gods could also be considered main characters in a sense. For example, Poseidon, Percy's father, might play a significant role. He could be guiding Percy or giving him special tasks. Zeus could also be involved, perhaps as an antagonist at times, creating problems for Percy that he has to overcome to please the gods.
I think Poseidon is a must - he's Percy's father, after all. Then there's Zeus, who likes to be in control and would want to see this baby who could grow to be a significant force. Apollo might come just for the fun of it, being the god of many things including prophecy, he might have some insights. And Artemis, as the goddess of the hunt, could also be there to see what all the fuss is about regarding baby Percy.
Poseidon would probably be one of the main gods watching. Since Percy is his son, he would have a strong interest in his well - being during the fight.
Aphrodite could also be one of the spying gods. Since she loves meddling in love affairs, and Percy and Annabeth's relationship is quite famous among the demigods. She might be spying to see how their relationship develops and perhaps add a little nudge here and there if she feels like it.