Answer:
The sheep, The character who has had to pay the most throughout the novel: A harmless game for the child escalated into a life or death situation for the sheep. This demonstrates how others are influenced by our actions, even if they had nothing to do with them, and why we should consider others before saying or doing insensitive things.
The Wolf- The metaphor of "the wolf" is a good approach to describe all of the potential threats that might arise in your life at any time. The coming of the wolf is a metaphor for any form of crisis in which you find yourself in need of assistance from others. If the child had known what was going to happen, he would not have joked around about something so important. This demonstrates how we shouldn't discourage something we haven't personally experienced because it might be influencing and hurt others.
The villagers- They decided to cease trusting the boy after being fooled and having their time wasted.
While the boy deserved it to some extent, the sheep who were harmed did not. This demonstrates how difficult it is to repair a shattered trust, and how the villagers may have felt bad for not believing the boy despite the fact that they had done nothing wrong.
The boy+ the message of the story- This moral is taught as a form of practical lesson in the story, demonstrating the true worth of telling the truth: you should always tell the truth because if you lie, people will not believe you, even if you are telling the truth. This tale serves as an argument or image to persuade you of the importance of stating the truth.
Hope it helps! :)