The main characters are surely the soldier's wife. And of course, the soldier himself, though he may be mostly absent physically in the story but his presence is strongly felt through the wife's experiences and emotions related to him.
Well, I think the main theme is love and loyalty. The wife stays true to her soldier husband despite the difficulties. She loves him deeply and this love gives her the strength to face all the challenges that come with having a partner in the military. For example, she might be worried sick when he is on a dangerous mission, but still holds on to hope and waits for his return.
I don't know for sure, but it could be a hero and a villain.
As I don't know the exact 'little soldiers story', it could be that the main characters are the little soldiers themselves. Maybe there is a brave leader among them.
The main character is Tony Prince, of course. He is the central figure around whom the whole story revolves. There are also other characters like his friends and business associates who play important roles. Some of his friends might be involved in helping him with the club business or getting him out of trouble. And then there are the antagonists, like rival club owners or criminals who are causing problems for Tony.
Well, there's also Yusuf Amir in the story. He is a wealthy character who has some business dealings with Tony. And then there are the various gangsters and criminals that Luis and Tony have to deal with. These antagonists play a big role in creating the conflict in the story. They are constantly causing trouble for Tony's clubs and trying to undermine him in the criminal underworld of Liberty City.
I don't know as I haven't read the novel. It could be the soldiers who operate the switchboards.
In this novel, the main character could be a former knight who has lost his way. He finds solace in wine while still relying on his sword skills. There might be a group of bandits as antagonists. They terrorize the villages and the main character, with his sword, has to fight them. And there could be an old hermit who knows a great deal about the history of the sword and the significance of the wine in the area. The hermit could play an important role in guiding the main character on his journey.
Obviously Caius is one of the main characters. And the baby, of course. There might also be some secondary characters like friends or foes of Caius who play a role in the story. For example, a friend who gives Caius advice on how to take care of the baby or an enemy who tries to steal the baby for some evil purpose.
I'm not entirely sure as I haven't read it completely, but I assume there would be Shinigami characters as main ones. Maybe a young or inexperienced Shinigami who is learning the ropes.
Since I haven't read it, I can't say for sure. But given the title, Sophie is likely to be one of the main characters. There could be other characters like her friends, family members, or perhaps antagonists who play important roles in the story.