In many cases, Ra's al Ghul, who is often associated with the Demon Head concept, is a central figure. His complex relationship with Batman adds a lot of depth to the fanfiction. Also, characters like Alfred, Batman's loyal butler, may play important roles. He could be the one providing Batman with crucial information or moral support during the encounters with the Demon Head. There may also be other members of the Bat - family, such as Batgirl, who might get involved in the story to help Batman deal with the Demon Head - related threats.
Batman is the central figure in these fanfictions. He is the hero who has to face the mystery and danger of the Demon's Head. Alongside him, we often see characters like Alfred, Batman's loyal butler. Alfred provides support and wisdom to Batman during his battles against the Demon's Head's influence. Additionally, some fanfictions might introduce new original characters who are either victims of the Demon's Head's actions or allies in Batman's fight.
Well, obviously Batman himself is the main character. He's the one who gets caught up in the Yellow Lantern concept. Then there are often the Yellow Lantern Corps members. Characters like Sinestro might make an appearance as he is a major figure in the Yellow Lantern Corps. They would be the ones trying to influence Batman or fight against him depending on the plot.
Batman's allies like Robin (whichever version - Dick Grayson, Jason Todd etc.) are often involved. They might have to deal with the fact that their mentor's identity is now public and face new threats because of it. Also, Commissioner Gordon is a main character. His relationship with Batman has always been complex, and this revelation will surely change how they interact.
Often, Naruto himself is involved. Since it's in the Naruto universe, he might be the one to encounter the Demon of the Mist and try to figure out what to do about it. Also, characters from the Mist Village like Zabuza or Kisame could be main characters as they have connections to the Mist and its secrets.
In a lot of 'Harry Potter Demon God Fanfiction', Dumbledore can be a major character. He might have some prior knowledge about the demon god and guide Harry in the right direction. Sometimes, new characters are introduced, like a powerful wizard from a far - off land who has had past encounters with the demon god and teams up with Harry. And of course, the villainous characters like Voldemort or his Death Eaters might also be involved, either trying to use the demon god for their own gain or being caught in the crossfire.
Harry Potter himself is often a main character in these fanfictions. His story could be re - imagined with the addition of demon inheritance. Hermione might also be involved, perhaps she tries to study and understand the demon inheritance. And of course, there could be new original characters created specifically for the fanfiction who have demon inheritance.
Naruto himself could be a main character in such fanfiction. Since he already has the Nine - Tails inside him, it's easy to imagine a story where he has a different kind of demon takeover. Another could be Sasuke. His quest for power might lead him to dabble in some dark magic involving demon takeovers.
Alina is also frequently involved. Her connection to the Darkling in the original work makes her a natural addition in many fanfictions. Their complex relationship can be further explored or even rewritten in different ways in fanfiction.
Batman is obviously one of the main characters. He's the central figure around which the tickling scenarios revolve. Robin is also commonly involved, as his relationship with Batman allows for different types of interactions, including tickle - related ones. The Joker is another character that might show up, as he loves to play mind games with Batman and tickling could be part of his devious plans.
Naruto himself is often a central character in 'naruto destruction fanfiction'. Since he is the main protagonist of the original series, fanfiction writers like to put him in situations where he has to deal with destruction. Sasuke is also frequently involved as his rival, and their relationship can be explored in the context of destruction, like if they have to work together to stop a greater threat of destruction.