Since I don't know the exact 'the sad camel story', I can only guess. Most likely, the main character is the sad camel itself. There might also be a camel herder or other animals in the desert that interact with the sad camel.
The main character in the 'the sad camel story' is surely the sad camel. But depending on the nature of the story, there could be other significant characters. If the story is about the camel's journey through the desert, there might be a wise old camel that gives advice to the sad camel. Or there could be predators that pose a threat to the sad camel, which would make them important characters in the story as well.
In the camel and man story, the key characters are the man and the camel. The man is central to the story as he makes decisions regarding the camel. He could be a kind man who takes good care of the camel or a greedy one who overworks it. The camel, on the other hand, is the entity that is affected by the man's actions. It has its own needs and instincts, and its interaction with the man forms the core of the story.
The main characters are the man and his camel, of course. They are the ones involved in the whole situation in the tent.
The main characters are, as the title says, the camel and the fox.
There's no way to know for sure without more information. It could be a young child who has to endure a difficult life situation in the sad story. Or it could be an old man looking back on a life full of regrets. Maybe it involves a group of people, like a family or a community that has to deal with a sad event together.
There are two main characters in this story. First, there is the Arab, who is a person with a tent that provides shelter. Second, there is the camel, which belongs to the Arab. The camel's actions and the Arab's reactions to them form the basis of the story.
The main characters are the man and his camel, as the title suggests.
Since I don't know the exact 'Sad Knight Story', it could have the sad knight as the main character of course. There might also be a damsel in distress he is trying to save or a villain who caused his sadness.
The main character in the 'the sad clown story' is surely the sad clown. However, there could also be some supporting characters. For instance, there might be a young child who befriends the clown and tries to understand his sadness. Or there could be an old mentor figure who has some wisdom to offer the sad clown in dealing with his emotions.
Since we don't have much information about 'the pearl sad story', it's difficult to say who the main characters are. But it could be a pearl diver who found the pearl, or the person who the pearl was given to.
If the'sad doll story' is about a haunted doll, then the main characters could be the doll and the people who encounter it. The doll might have a malevolent spirit inside it, and those who come across it, like a curious collector or a family that moves into a new house where the doll is found, would be the other main characters. They would experience strange and sad events related to the doll.