Team Galactic's Cyrus. He is a complex villain with a grand plan. A fanfic could delve into his motives more deeply, or perhaps show a different side of him, like what led him to his extreme beliefs in the first place. His interactions with the main characters could also be a major part of the story.
The main character from the game, of course, is a popular choice. Also, Cyrus from Team Galactic is often included as he is such a complex and interesting villain. And Dawn or Lucas, depending on the version, are great to have as they are the typical Pokemon trainers that players can relate to.
One popular character to include is Giratina. Even though it's a Legendary Pokemon, it can be given a more complex personality in fanfiction. Maybe it has a reason for being so feared and banished to the Distortion World that goes beyond what is shown in the games. Also, Fantina, the Gym Leader of Hearthome City, with her unique style and love for Ghost - type Pokemon, can be a great addition to a fanfiction. And don't forget about Maylene, the Fighting - type Gym Leader. Her journey to become stronger and her relationship with her Pokemon can be explored in depth.
Cynthia is also very popular. As the Sinnoh region's champion, she is a powerful and mysterious figure. In fanfics, she can be portrayed as a mentor, a rival, or even an antagonist in some unique storylines. Her Gardevoir and Garchomp are also often featured in these stories.
Ash Ketchum is a classic choice. His experiences and growth throughout his journey can serve as inspiration or even be part of a parallel story in the fanfic. You could also include his Pikachu, which is an iconic Pokemon.
Definitely Serena. She's a well - known character from the Kalos region. Her journey as a Pokemon trainer and her relationship with Ash can be explored further in a fanfic.
Ash Ketchum is always a popular choice. His long - running journey through different Pokemon generations provides a lot of material for fanfic writers. You can write about his new adventures, or what if scenarios like what if he had chosen a different starter Pokemon in a certain generation.
Ash is always a popular choice. His experience and determination can add a lot to a fanfic. You can create new adventures for him, like facing a powerful, never - before - seen Legendary Pokemon.
Maybe a fanfic where a trainer's Pokemon gets a strange and unique ability due to an encounter with a mysterious Pokemon in the Platinum and Pearl world. This could lead to all sorts of adventures as they try to understand and control this new power.
Pikachu is always a popular choice. It's so well - known and cute, and imagining it in a transformation scenario, like turning into a human or another Pokemon, can be really interesting. Another popular character would be Charizard. Its cool and powerful look makes for great transformation stories. And of course, Mewtwo. Given its mysterious origin and powerful psychic abilities, a TG story involving Mewtwo could be very engaging.
In Pokemon, Pikachu is always a popular choice. It's the mascot of the franchise and super recognizable. In Digimon, Agumon is really popular. So including them in a fanfic would draw a lot of readers. Also, characters like Ash from Pokemon and Tai from Digimon are well - loved and would be great to have in a crossover fanfic as they could lead the combined adventures.