Annabeth Chase could also be very important. As Percy's girlfriend and a brilliant strategist, she can offer advice, support, and sometimes be the voice of reason when Percy is about to make a rash decision. Her knowledge of mythology and architecture can also play a crucial role in their adventures.
The gods might also be important characters in the fanfiction. They could either be obstacles for Percy to overcome in his journey of redemption, or they could be the ones setting the tasks for him to prove himself. Their complex relationships with Percy and their own agendas can add a lot of depth to the story.
One interesting plotline could be Percy having to face a new and powerful ancient evil that the gods are also afraid of. This would put him in a position where he has to use his wits and powers in ways he hasn't before.
Percy's friends from Camp Half - Blood could also be important. They might react in different ways to Percy's new status as the Son of Chaos. Grover, for instance, could be torn between his loyalty to Percy and his fear of the new and unknown powers Percy wields. Nico might also have a significant role, perhaps using his own dark powers to help Percy understand and control his Chaos - related abilities. These characters add depth to the story and create a sense of continuity with the original Percy Jackson series.
Percy Jackson himself is likely one of the most important. He's the hero of the Percy Jackson series, and in this fanfic related to the Bane of Olympus, he would probably be at the center of the action, using his powers and wits to combat the threat.
Percy himself is obviously very popular. After all, it's his series. Annabeth is also a fan favorite, as her intelligence and strong will make for interesting storylines. Nico di Angelo is quite popular too, especially when his powers and his somewhat dark nature are explored in fanfiction.
Percy is definitely one of the most popular. His powers and his relatable, humorous personality make him a natural choice for fanfiction. Annabeth is also very popular as she is intelligent and strong - willed. Her strategic thinking can add a lot of depth to the gaming - related stories.
Percy Jackson himself is still very popular. People love to write about his further adventures, his growth as a demigod, and his relationships. For example, his relationship with Annabeth might be explored in more depth, like how they deal with new challenges as a couple.
Percy Jackson himself is often very popular. His powers over water and his heroic nature make him a central figure in many fanfictions.
Annabeth Chase is also a fan favorite. Her intelligence and strong will make her a great character to explore in fanfiction. Writers might focus on her architectural projects in the context of the demigod world, or her relationship with Percy from different angles.
Grover is another character that gets a lot of love in fanfiction. His kind - hearted nature and his connection to nature make for interesting storylines. For example, a fanfiction could focus on Grover's role in protecting a new and endangered species of magical creature, and how Percy and Annabeth help him in this mission.
Often, characters like Percy Jackson himself remain very powerful in fanfiction. His control over water is a formidable power, and in fanfic, it might be enhanced even more, making him one of the top contenders. Also, characters related to the Big Three gods (Zeus, Poseidon, Hades) tend to be powerful due to their heritage.