I'm not sure specifically without having read the novel, but it's likely that the dancing girl is one of the main characters. There might also be a love interest, like a young man who is drawn to her because of her dancing or her unique charm.
Perhaps there is a mentor figure in the 'the dancing girl novel'. This could be someone who has taught the dancing girl her skills or has guided her in her journey. Another possible main character could be a rival dancer. This character could create conflict and drama in the story as they compete with the dancing girl for various things, such as recognition or a certain role.
Maybe there are other characters like an audience. In a story, the reaction of the audience to the dancing girl's performance can be important. There could also be a love interest. For example, a young man who falls in love with her at first sight when she is dancing on the stage. And perhaps there is a rival dancer who is jealous of her talent and tries to undermine her.
Obviously, the dancing girl is one of the main characters. But we don't know if there are others without more details about the story.
Since we don't know the exact 'dancing girl story', it's hard to say. But generally, there would be the dancing girl herself as the main character. There might also be a teacher or mentor who helps her improve her dancing skills.
Since I haven't read the novel, I can't say for sure. But it could be the dancing girls themselves, their instructors, or people related to their dancing careers like choreographers or managers.
The characters included the protagonist, Alice, and the protagonist, Leo. "The Girl's Solo Dance" by Dawn C. It is a fantasy/epic fantasy novel. It has been completed and can be enjoyed without worry. [User recommendation: A 350,000-word novel with a female lead. As expected, it's still too niche. Newbies who are curious about a male channel with a pure female lead can try it. There aren't many words anyway...] I hope you will like this book.
There could be a character who witnesses the dead man dancing. This person might be initially shocked but then becomes intrigued and through their perspective, we learn more about the dead man and the significance of his dancing. Maybe they are on their own journey of self - discovery and the dead man's actions act as a catalyst for their own growth.
In the 'dancing with dragons ya novel', the main characters could include a young hero or heroine. This character might be on a quest, and the dragons are either obstacles or keys to achieving their goals. There could also be an antagonist who wants to use the dragons for their own evil purposes. And perhaps a group of side characters, like the hero's friends or family, who support or are affected by the hero's actions regarding the dragons.
Obviously, the dancing girl is an important character in the story named after her. She is likely the center of the protagonist's attention and the source of his various emotions.
The girl could be a symbol of humanity in general. In this story, she stands for all those who are faced with the choice between good and evil. It doesn't matter who she is specifically, but rather what she represents in the context of the story about dancing with the devil.
Since I don't know the exact story, it could be a young couple as the main characters. They could be the ones enjoying the moonlight dance together.