There is often a central male character who is likely to be in the middle of the love triangle or complex relationships in the story. His actions and decisions drive much of the plot.
Then there is the female character who is the object of the male character's affection. She may have her own desires and conflicts that are not immediately obvious. For instance, she might be torn between different suitors or her own dreams and the expectations of society.
The main character is Chichikov, who is a complex and somewhat devious figure. His actions drive the plot as he tries to amass wealth through the acquisition of dead souls. Another important character is Sobakevich. He is a shrewd and practical landowner, different from the more dreamy Manilov. And Plyushkin, a miserly and hoarding character, is also significant in the novel as he represents extreme avarice.
There are probably some supporting characters like his friends or family members. They may play a role in either helping him deal with his ability or being a source of conflict. For example, a friend might not believe in his power at first and this could create tension in their relationship.
The main character is the detective, even though she is already dead. And there are other characters like her partner who has to continue the work she left. There's also likely some villains or suspects in the story that play important roles in the overall plot.
There is Fatima. She is a very important character, known for her beauty and mysterious powers. Another important one is Amaterasu. He is a key figure in the story's power structure.
There's a young sidekick - like character. He plays an important role in uncovering the secrets left behind by the dead detective. Also, there are some antagonists who create obstacles for the characters trying to solve the mysteries related to the detective.
Since there are no more details about this 'dead stars story', it's really hard to determine who the author is. There could be a new, emerging writer who has come up with this concept, or it could be an old, forgotten piece of literature. It could also be a story written for a specific community or a niche audience, which makes it even more difficult to trace the author.
Some important characters include the various faction leaders. For example, the leaders of the bounty hunter organizations or the trading companies. They give out quests and tasks that are crucial to the story progression.
Well, Negan is the key character in his origin story. But it's possible that there were some adversaries he faced early on that shaped him. People who tried to oppose him when he was just starting to build his power. These interactions could have made him more determined and ruthless. Also, there could be some characters within the Saviors who had different ideas about how to lead, and their disputes with Negan could be part of his origin story as well.
The main character is likely to be important. Without having read it in detail, it's often the case that the protagonist drives the story forward in a book like this. There might also be an older, wiser character who represents the history and traditions of Norvelt, someone who imparts knowledge to the younger characters.
As I don't know the exact story, I can't say for sure what the main characters are. But they could be astronomers or scientists who are studying the dead stars. Maybe there are also some characters who have a more personal connection to the discovery or study of these stars, like a family member of a scientist.