There is likely the little monkey as the central character. There may also be other animals like birds or squirrels that interact with the monkey in the story.
It brings misfortune. For example, when they wish for money, their son dies. So it changes their lives from a normal, happy family to a grief - stricken one.
As I don't know the actual 'bibi monkey story', I assume the main character would be Bibi the monkey. There might also be other animals like birds, squirrels or other monkeys that interact with Bibi.
In the Monkey King story, the central figure is the Monkey King. He is a powerful and mischievous character. Then there's Tang Sanzang, a Buddhist monk. Tang Sanzang is the one that the Monkey King protects during their journey to the West. Zhu Bajie is another character. He is often depicted as lazy and gluttonous but also has his own charm. Sha Wujing is the most loyal and hard - working among them. All these characters together create a vivid and interesting story.
The monkey is the central figure in 'the christmas monkey story'. But there could be other characters that contribute to the plot. For instance, if the monkey lives in a zoo, the zookeeper might be an important character. The zookeeper could be the one who first shows the monkey some Christmas decorations, which sparks the monkey's interest in Christmas. There could also be other animals in the zoo that the monkey interacts with regarding Christmas. Maybe a wise old owl that gives the monkey advice on how to enjoy Christmas, or a friendly deer that the monkey mistakes for a reindeer at first.
In the 'monkey man story', the monkey man is the central figure for sure. He might be joined by other characters. There could be a human friend who helps the monkey man understand human society better. Maybe there is a female character, either a human or another half - human - half - something creature, who becomes the monkey man's love interest. And then there could be the villains, perhaps a gang of thieves or a tyrannical king who the monkey man has to oppose to protect the innocent.
The monkey and the boy are the main characters. In many such stories, the boy could be the one who represents human qualities like curiosity or kindness. The monkey, on the other hand, might bring in elements of playfulness and a different kind of intelligence. Their relationship and how they interact with each other would be what drives the story forward.
Since we only have the title 'the monkey short story', it's impossible to know precisely who the main characters are. The monkey is surely a key figure. There could be a group of monkeys if it's a story about monkey society, showing their hierarchy and relationships. There might also be a character like a wise old owl that gives advice to the monkey, or a sly fox that tries to trick the monkey. Without reading the story, we can only guess at the possible main characters.