I'm not entirely sure who all the main characters are without reading the book. However, it's likely that there are characters related to the historical settings in which the fat man is placed. These could be people from different social classes, like a nobleman who looks down on the fat man, or a poor beggar who has an unexpected encounter with him. There might also be family members or acquaintances of the fat man that are central to some of the stories, perhaps showing different sides of his personality or how he is perceived within his own social circle.
Obviously, the fat man is one of the main characters. But there might also be other characters who interact with him, like those who judge him or those who are his friends (if he has any in the story).
There could be many 'fat men' in various history stories. Without more context, it's hard to be specific. It could be a character who was physically fat and had a significant role in a particular historical event or period.
One possible theme could be the human condition. The 'fat man' might symbolize certain aspects of society or individuals within it, perhaps exploring how people are perceived or how they interact with the world around them.
Since we don't know the details of the 'fat man carnival story', it's hard to say for sure. But most likely the fat man himself is a main character. There could also be carnival workers, like the ticket seller, the ride operators or the food vendors who might be important characters in the story.
I'm not sure specifically as I haven't read it in detail. But I assume the 'Jealousy Man' is one of the main characters. There may be others who are related to him in some way, like friends or family members who are affected by his jealousy.
I'm not entirely sure without having read it in detail, but likely there are characters that represent different aspects of the society depicted in the book. Maybe there is a push man who could be central, perhaps someone who is constantly in a position of having to push forward in a difficult life.
I'm not entirely sure without reading it specifically, but typically in such a work, there would likely be an ordinary man as one of the main characters, and then perhaps a character representing the superman. There could also be supporting characters like friends, family, or antagonists.
The man upstairs is likely one of the main characters. But without reading it, it's hard to say who else exactly.
The main character is clearly the man with the scar. But there might be other supporting characters who interact with him and whose stories are also told in relation to his. Maybe a friend or a family member who has a different perspective on the man with the scar.
The Gingerbread Man is obviously a main character. And often there are animals like the fox, the cow, and the horse who are also important as they are the ones chasing the Gingerbread Man.