Lann and Reynn are obvious choices. They are the main characters in World of Final Fantasy and can serve as the link between different crossover worlds. Their ability to capture and use mirages makes them versatile in different settings.
Gilgamesh is a fan - favorite character. His over - the - top personality and his penchant for collecting powerful weapons would add a lot of humor and action to a crossover fanfiction. He could be on a quest to collect the most powerful items from the crossover world as well as his own.
Shantotto is also a great character to include. She's a powerful mage in the Final Fantasy universe. In a crossover, she could use her magic to either help or cause trouble depending on the situation. For example, if crossed with a steampunk - themed world, she might be intrigued by the new technology but also try to impose her magical ways on it.
Itachi from Naruto is also a popular choice in these crossovers. His complex character and powerful abilities can be really interesting when combined with the world of Final Fantasy 8. He could be seen as a mysterious figure in the FF8 world, perhaps even having some connection to the sorceresses. And of course, characters like Naruto and Zell from FF8 can have some fun interactions too, with their different fighting styles and personalities.
Luffy from 'One Piece' is a great choice. His carefree yet determined personality would contrast well with Ippo's more serious and focused nature. They could bond over their shared love for adventure and fighting for what they believe in.
Lann and Reynn are quite popular. Their unique relationship and their journey in the game make them great candidates for fanfiction. Writers often explore their further adventures or what might have happened before the events of the game.
Percy Jackson himself is often a very popular character in these crossovers. His unique powers and relatable personality make him a great fit for interacting with the Final Fantasy universe.
Ink!Sans is a popular pick. His creative and somewhat unpredictable nature can bring a lot of color (literally and figuratively) to a Glitchtale crossover. He could use his paint powers in the Glitchtale world in ways that no one expects. Also, Bete Noire from Glitchtale is a character that many fans like to include. Her relationship with other characters, especially her sister, can be explored in new and interesting ways when in a crossover situation.
One popular character to include is Batman from DC Comics. The contrast between Batman's detective skills and gadgets and Raiden's superhuman powers would be fascinating. Another is Goku from Dragon Ball. Goku's love for fighting and his ability to reach new levels of power could lead to some epic battles with Raiden. And of course, Samus Aran from Metroid. Samus' armored suit and her exploration of alien worlds could be combined with Raiden's adventures in a unique crossover story.
Definitely Balto himself. He's the main character and the centerpiece of any Balto - related fanfiction. Another popular character could be Steele. His antagonist role in the original Balto story makes for great conflict in crossovers. Also, Jenna is often included as she was an important part of Balto's story.
John Connor is often a popular choice. His leadership skills and importance in the Terminator series make him a great character to bring into other fictional universes. For example, in a crossover with a superhero world, he could be seen as a strategist working with the heroes.
Batman himself is obviously a must - include. His leadership and skills are central to the Batfamily dynamic. Also, Robin, especially Damian Wayne as his complex relationship with Batman adds a lot of drama. Nightwing is popular too, with his acrobatic skills and his own journey away from being Robin. Batgirl, like Barbara Gordon, is often included for her intelligence and fighting abilities. And Alfred, the ever - loyal butler, who often provides support and wisdom to the family.
In Ben 10 crossover fanfiction, many writers like to include Azmuth. As the creator of the Omnitrix, he has a wealth of knowledge and power. His presence can add a layer of depth to the story, especially when it comes to explaining the science behind the Omnitrix or helping Ben understand new alien forms. Also, Charmcaster is often included. Her magic abilities can create some interesting dynamics when combined with Ben's alien powers in a crossover.