I don't know as I haven't read it, but there could be the ringmaster, performers like acrobats or clowns, and perhaps the circus animals.
Since I'm not familiar with the 'the last day of the circus short story', it's difficult to say exactly who the main characters are. However, in a circus setting, there are some common types of characters that could be main characters. There could be a young and ambitious performer who is just starting to make a name for themselves and is now facing the end of their new - found career. There might also be an old - timer in the circus, someone who has been there for decades and has seen all the highs and lows. And of course, there could be a character who has a special relationship with one of the circus animals, and they are both affected by the last day of the circus.
I'm not sure as I haven't read this specific short story. But generally, it might be about the final day of a circus, perhaps showing the closing down of the circus, the reactions of the performers, the animals, and the audience.
In a day at the circus story, the main characters would probably be the performers who bring the circus to life. That includes the high - flying trapeze artists who are the stars of the aerial acts. Also, the clowns are essential main characters as they bring laughter and joy to the audience. And of course, the ringmaster who guides the whole show and keeps everything in order.
Since I haven't read it, I can't say for sure. But it could be the ringmaster, as they are often central figures in circus stories, controlling the flow of the show.
Obviously, the sisters are the main characters. But there could also be other supporting characters like their parents, who might be involved in some way, for example, by giving them advice on how to spend the day or by providing them with things they need for their activities.
Typically, the students are the main characters. But teachers also play important roles. They are there to oversee the events of the day, like the final assemblies or parties. And sometimes, there are also janitors or cafeteria workers who might make a cameo in the story as part of the school environment on this special day.
We can't really know for sure who the main characters are. It could be that the main characters are a group of Vocaloid characters who are performers in the circus. Maybe there's a new Vocaloid character created just for this story who is the key to dealing with the monster. Or perhaps it's an ensemble of both old and new Vocaloid characters, each with their own role to play in the circus and in the story about the monster.
Since I don't know the specific 'dark woods circus story', it's hard to say. But it could be the ringmaster, who might be a mysterious and perhaps a bit menacing figure. There could also be a young acrobat who is trying to escape the clutches of the circus.
The main character is usually a young schoolboy. He is the one through whose eyes we experience the 'last lesson'. There is also his teacher, Mr. Hamel, who plays a very important role in the story.
There could be a family as the main characters. Maybe they got separated due to some event, like a war or a natural disaster. And the story could be about their struggle to reunite and finally be home together. Without reading the actual story, it's hard to be certain though.
In many 'The Last Supper' short stories, the main characters are often those who are gathered for the meal. It could be religious figures like Jesus and his disciples, or it could be a group of friends or family in a more modern or fictional retelling. Without reading the specific short story, it's hard to be certain.