I'm not sure as I haven't read the novel yet. But it could be Spartan warriors, leaders, or even slaves who play important roles in the story of Sparta's end.
The main character is Kratos. He is the Spartan warrior around whom the story revolves.
The most prominent character is Kratos. He is the one driving the story forward with his quests and battles. There are also some other characters from Greek mythology that he interacts with, like the gods and various mythical creatures, but Kratos is the main focus.
Naruto is often one of the main characters. Since it's a 'Naruto' and 'Ghost of Sparta' crossover, Naruto brings his ninja skills and his determination. Kratos from 'Ghost of Sparta' is also commonly included. He is a powerful and complex character with his own set of skills and a tragic backstory.
In these fanfics, Harry Potter is typically a central figure. He could be on a quest that takes him to the Spartan realm. Ron Weasley might tag along too, providing some comical relief while also being involved in the adventures. From the Spartan side, a strong and noble Spartan leader or hero would be present. This character would be intrigued by the magic that Harry and his friends bring and would want to learn more about it. They would all interact in various ways, facing challenges together.
Well, perhaps we can expect a story about the fall of Sparta. It might include details about the political, social or military aspects that led to its end.
Since I don't know the specific 'the end of days novel', I can't say for sure. But often in such novels, there are survivors like a strong - willed leader, a scientist who might be trying to find a solution, and ordinary people just trying to stay alive.
There might be an antagonist as well. This character could be causing problems for the main character throughout the story, starting from the beginning and being a source of conflict until the end. For example, a villain who is trying to stop the protagonist from achieving their goals.
I'm not sure as I haven't read the novel specifically. But generally, in a novel about the end of loneliness, the main characters could be those who are experiencing loneliness in the beginning, like a solitary individual who has lost someone or who has always felt alone in society.
I don't have enough information to say who the main characters are. I'm sorry.
I don't know as I haven't read it. There could be the paladin as the central character, of course.