Joker is definitely one of the most popular. His cool and mysterious demeanor makes him a great fit in various crossovers. Also, Morgana is often included as his sidekick. Another popular character is Makoto, with her strong - willed and intelligent personality.
The most popular characters to include in persona 5 crossover fanfiction are often those with the most distinct personalities. So, Ann with her model - like looks and fiery spirit is a common choice. Yusuke with his artistic and sometimes eccentric nature also makes for great crossovers. When they are put into different universes, their reactions and how they adapt can be a lot of fun to write about. For example, in a crossover with a superhero universe, how would Ann use her charm and physical abilities? And how would Yusuke view the new art forms and powers around him?
Definitely Yu Narukami. He's the main character in Persona 4 and his leadership and strong Persona abilities make him a great addition to crossovers. Yosuke Hanamura is also popular. His comical nature and loyalty can add some humor and heart to the story. Chie Satonaka is another one. Her martial arts skills and determination are great traits in crossovers.
Tattletale from 'Worm' could be an extremely interesting addition. Her power of hyper - awareness and her devious nature could make for some really intense interactions with the characters in 'Persona 4'. She could either be a great help in solving the Midnight Channel mystery or a major obstacle, depending on her motives.
Rias from Highschool DxD is likely to be a popular choice in crossovers. Her status as a powerful devil and her leadership role can make for some exciting scenarios when combined with the Persona 3 universe. Another popular character could be Aigis from Persona 3. Her robotic nature and combat abilities can be quite interesting when pitted against the supernatural beings in Highschool DxD.
Definitely Venkman. His sarcastic and witty personality can create great interactions in crossovers. For instance, if he were in a crossover with the X - Men, his humorous take on the mutants' powers would be hilarious.
Hajime Nagumo from 'arifureta' is a popular choice. His overpowered abilities and his journey from being a weakling to a powerful hero make him an interesting character to put in crossovers. Yue is also very popular. Her magic and her relationship with Hajime can add a lot of depth to a crossover story. Another character is Shea. Her energetic and somewhat naive personality can create humorous and interesting interactions in a crossover.
Akagi is another fan - favorite. Her character has depth and mystery. In a crossover, she could be the key to unlocking some complex plotlines, perhaps she has a connection to a powerful artifact in another world or has some hidden knowledge that is crucial for the story.
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.
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.
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.
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.