I don't know as I haven't read this 'the servant novel'. It could be the servant themselves, perhaps named something like Tom or Mary. And there might be the master or mistress of the house as important characters too.
Without having read 'the servant novel', it's difficult to say exactly who the main characters are. However, based on what we generally know about servant - themed novels, there would be the servant character, who is the focal point. There might be a cruel overseer who makes the servant's life difficult. Additionally, there could be a character from outside the household, like a local merchant or a traveler, who comes into the servant's life and changes things, either for better or for worse.
I don't know for sure. But I assume there would be the vampire servant as one of the main characters. And probably the vampire master who the servant serves.
Since the title is 'servant of the bones graphic novel', it's very likely that the servant of the bones is a main character. There may also be other characters like those who interact with the servant, perhaps a master who commands the servant, or an enemy who tries to stop the servant from fulfilling its purpose related to the bones.
Since we don't have much information about the specific 'the servant king story', it's hard to say exactly who the main characters are. But surely the servant king is one of the main characters.
Since I don't know the exact'servant girl story', it's hard to say. But usually, the servant girl herself would be a main character. There might also be the family she works for, like the master, mistress, and their children.
I'm not entirely sure without reading it thoroughly, but I bet there are some standout servant characters who play important roles.
Naruto is the central character here as he's the one in the role of servant of the dark. There could be other characters like an ancient dark wizard or a powerful demon who are pulling the strings and making Naruto do their bidding. His sensei Kakashi might also be involved, either trying to bring Naruto back or being conflicted about how to deal with him now that he's on the dark side. Additionally, villains from the original Naruto series could have a more prominent role in this fanfiction, working with Naruto in the dark or against him depending on the plot.
Obviously Naruto would be one of the main characters. Depending on the story, Hinata could be a main character as well since she has feelings for Naruto in the original series and it would make sense in a love - centered fanfic. There might also be new characters created specifically for this fanfic that play important roles in Naruto's love journey.
The main character is the Servant of the Bones. In Anne Rice's works, this character is often a conduit between different planes of existence. It has its own motives and backstory which drive the plot forward. Other characters in the graphic novel would be the humans or other supernatural entities that cross paths with the Servant of the Bones. Their interactions with it form the core of the story, as the Servant of the Bones deals with their requests, desires, or sometimes, their threats.
The main character is the one who raises the obsessive servant. And of course, the obsessive servant is also a main character. But without reading the novel in full, it's hard to say more about their personalities and backgrounds.
Typical characters in 'life as a servant novel' are the protagonist who is the servant. This servant might have friends among the other servants, such as the maid who is kind - hearted and helps the main servant character. Then there are the upper - class characters like the wealthy landowner or the noble lady who the servant serves. There may also be antagonists among the servants, those who are jealous or try to make the main servant's life difficult.