A local fisherman on Poni Island who has a special bond with water - type Pokémon could also be a main character. He might use his Pokémon to help him in his fishing and one day, he discovers a strange water - type Pokémon that leads him on an adventure across the island to find out more about its origin.
A young and ambitious trainer who has come to Poni Island to prove themselves could be a main character. They are eager to explore the island, catch new Pokémon, and rise in the ranks of the local Pokémon community.
Perhaps a fanfic where a young trainer from another region comes to Poni Island to compete in a special tournament. Along the way, they meet different characters who teach them about the island's unique Pokémon, traditions, and the importance of the bond between trainer and Pokémon. This could involve training sessions in Poni Island's distinct landscapes like its beautiful beaches and lush forests.
A young and ambitious sand ninja named Kaito could be a great main character. He's eager to prove himself and rise through the ranks in Sunagakure. Another could be a female ninja, Saya, who has a special jutsu related to sand manipulation that sets her apart. Or perhaps an older, more experienced ninja, Ryuji, who has seen many battles and has a lot of wisdom to offer but is also haunted by his past actions in the service of the village.
The main characters are the contestants who enter the Love Island villa. They are all individuals looking for love or some sort of romantic connection.
There could be the descendants of Jon Snow and Daenerys Targaryen. Their child might be a central figure, having to deal with the complex legacy of their parents. With the blood of Stark and Targaryen, they would have a unique position in the power struggle.
There could also be a group of misfit characters. Maybe they are students who didn't fit in at Hogwarts for some reason and found their way to Potter Island. Together, they form a sort of 'found family' and have to work together to face the challenges that the island presents.
Obviously, Harry is one of the main characters. He's usually at the center of the story, driving the plot forward with his actions and decisions.
A young and talented wizard who is an outcast because of his unorthodox ways of using magic. He could be the main character who rises to great heights in the wizarding world.
A young prodigy who has been training for the game since childhood. He has natural talent but also has to learn how to deal with the pressure of being a top contender.
It could be a young orphan. Orphans often struggle to find a place where they belong, so this character would have a strong motivation to search for that special place. They could be kind - hearted but also have a bit of a feisty side to survive in the world of the fanfic.
Jackie Estacado from 'the darkness' is an obvious choice. His connection to the Darkness power makes him a central figure and his skills and personality can drive the story forward in a crossover.