There could be a young trainer from a dimension where technology and Pokemon co - exist in a unique way. This trainer might have gadgets and tools that are powered by Pokemon energy, and she uses these to enhance her battles. She could be a rival to Ash in some aspects, but also a friend who shares her knowledge of how to combine technology and Pokemon training. Another interesting character could be a wise old Pokemon sage from a dimension filled with ancient and powerful Pokemon. This sage could offer Ash spiritual and strategic advice on his journey through the dimensions.
A cool character might be a psychic - type Pokemon from a dimension where psychic abilities are the norm. This Pokemon could befriend Ash and help him understand the complex psychic powers that exist in that dimension. It could also use its powers to assist Ash in battles or in navigating through the difficult terrains of different dimensions. Additionally, there could be a dimension - specific legendary Pokemon that has its own motives and goals. It might initially be seen as a threat but later turns out to be an ally to Ash, teaching him important lessons about the interconnectedness of all dimensions.
One interesting character could be an alternate version of Misty from another dimension. Maybe she's a powerful water - type Pokemon trainer who has mastered techniques that the original Misty hasn't. Another could be a dimension - hopping researcher who is trying to study the different dimensions and their Pokemon. He could be a source of knowledge for Ash, guiding him through the mysteries of the new dimensions. There could also be a villainous character who is causing chaos across the dimensions by stealing rare Pokemon or disrupting the balance between different dimensions.
In some fanfictions, a common plotline is Ash getting lost in a chaotic dimension where Pokemon and humans live in a reversed power dynamic. Here, Pokemon are the rulers and humans are the ones being tamed. Ash has to navigate this strange world and try to find a way back to his own dimension while also learning about the unique cultures and values of this dimension. Another plot might involve Ash finding a dimension where legendary Pokemon are as common as regular Pokemon in his world, and he has to deal with the consequences of this over - abundance of powerful creatures.
Pikachu is always an interesting character in these fanfictions. In some stories, Pikachu might develop new abilities or have a deeper understanding of the Pokemon world that it can share with Ash. Another character could be Gary. He can be portrayed as a more complex rival, perhaps with his own hidden motives or a change of heart towards Ash. And then there's Misty. She can have new storylines in fanfictions, like being a powerful water - type Pokemon trainer with her own unique training methods that Ash can learn from.
Lillie is really interesting. She starts off as a shy girl but grows a lot in her confidence when it comes to Pokemon. Her relationship with her family and their connection to the Aether Foundation adds depth to her character. Then there's Kiawe, who is very proud of his Alola heritage and his strong fire - type Pokemon. His no - nonsense attitude and his eagerness to prove himself make him stand out. And Sophocles, the tech - savvy kid, is always coming up with cool gadgets to help in Pokemon battles or exploration, which is super fun.
The OC themselves are often popular characters. Since they are original creations, they can have all sorts of unique personalities, abilities, and backstories. For example, an OC could be a shy but brilliant Pokemon trainer who gradually overcomes their insecurities with Ash's help.
Team Rocket might be main characters as well. They could be constantly trying to capture Ash or his Pokemon because of his special status. Their bumbling attempts to take advantage of Ash's link to Arceus could add a lot of comical and action - filled moments to the fanfiction. And of course, Arceus itself could be a major character, guiding Ash in some way or interacting with him directly.
Obviously, the Legendary Pokemon would be a main character. It could be a Pokemon like Mewtwo, who is often depicted as having a complex personality. It might start off as a mysterious and powerful entity that Ash has to befriend or battle against.
One popular character is Misty. She often appears in fanfiction and can have different roles. Sometimes she's a strong supporter of Ash in his Dex Holder adventures, and other times she might be on her own journey but still cross paths with Ash. Her feisty personality and love for water - type Pokemon make her an interesting addition to the stories.
Pikachu is definitely a common character. It's Ash's most loyal partner and is always by his side during his adventures. Serena is also often present. She has her own dreams and goals related to Pokemon and often travels with Ash, providing support and sometimes even competing with him.
Pikachu is a must - include. It's Ash's most iconic Pokemon and always adds a lot of charm and power to the story. Brock could also be great as he has a lot of knowledge about Pokemon and can offer valuable advice.
Misty and Brock are also main characters in many of these fanfictions. After Ash's sacrifice, they might be the ones to comfort Pikachu and the other Pokémon. They could also take on Ash's unfinished tasks, like continuing to explore the Pokémon world, helping other trainers, and fighting against any emerging threats. Their friendship with Ash gives them the motivation to keep going in his absence.