Naruto is bound to be a main character in 'naruto ghost of konoha fanfiction'. Besides him, it could be that some of the previous Hokages appear as spectral figures. They could be the ones guiding Naruto in dealing with the ghostly threats in Konoha. And of course, Naruto's friends like Shikamaru or Ino could also play important roles, perhaps they get caught up in the mystery of the ghosts and Naruto has to rescue them or they help Naruto in his investigations.
Most likely Naruto would be one of the main characters. Since it's a Naruto - centered fanfiction, he would be at the heart of the story. There might also be other characters like Sakura, Sasuke, or Kakashi who could be involved in the plot related to the ghosts in Konoha.
Obviously, Naruto is likely to be one of the main characters. Since it's 'naruto gamer of konoha', he's probably at the center of the story.
Obviously Naruto is one of the main characters as it's related to him. And the Nine - Tailed Fox would also be a central figure considering the title. Also, characters like Sasuke and Sakura are likely to be important as they are Naruto's friends and comrades in the original Naruto series and would surely be involved in the events of the fanfiction.
Obviously Naruto would be one of the main characters since it's in his name. There might also be his friends like Sasuke and Sakura. Kakashi could also be an important character as he is Naruto's teacher and mentor, guiding him in understanding and using his 'hidden dragon' abilities.
Sakura could also be a main character. She's a strong ninja in her own right. In a fanfiction like this, she could be involved in treating the injured when the Hellsing - related chaos starts. Maybe she also tries to understand the unique physiology of Alucard. And Integra from Hellsing. As the head of the Hellsing organization, she could be the one trying to establish some sort of order between the two worlds.
Sakura could be one of the main characters. She has a long - standing relationship with Naruto and might play a role in convincing him to return. Maybe she tells him about the state of the village's hospital or how his friends miss him.
I think Naruto is the central character. His friends, such as Kakashi, who was his teacher, would also be main characters. They would be involved in Naruto's journey of dealing with being labeled as a demon in Konoha. Additionally, any villains or antagonists who oppose Naruto because of his 'demon' status could be main characters. For example, if there are some villagers who are against Naruto and try to drive him out, they could be considered main characters in the context of this fanfic.
The main characters are, of course, the Konoha Twelve. This includes Naruto Uzumaki, Sasuke Uchiha, Sakura Haruno, and others. They are the focus of the fanfic and usually the ones driving the story forward with their actions and decisions.
Another main character could be Kakashi. As Naruto's former teacher, he might be conflicted about Naruto's exile. He could be trying to find a way to bring Naruto back to Konoha or at least help him in some way while also having to deal with the village's decision. And of course, there could be new characters introduced specifically for this fanfic, like a mysterious figure who helps Naruto during his exile.
The main characters would most likely start with Naruto. His character would be central to the story. Alongside him, we might see the Hokage at the time also playing a role. Additionally, there could be a group of shinobi who are specialized in dealing with demons that Naruto teams up with. And perhaps some of the villains or demons themselves could be considered main characters in a sense, as they drive the conflict in the story.
Obviously Naruto himself is the main character as the story is about him fleeing Konoha. Sasuke could also be involved. He might be the reason Naruto flees, like if Sasuke is being manipulated by an enemy and Naruto has to leave to save him. Or he could be chasing after Naruto, thinking Naruto has gone rogue.