The main characters might include the person who first wields the little knife. This could be someone with a unique background or skill. There could also be a character who is in search of the knife for some important reason, like it holds the key to a long - lost treasure or it has the power to break a curse. Additionally, there could be a group of characters who are affected by the actions related to the little knife, for example, a community where the knife has some symbolic meaning.
Since I haven't read this particular short story, it's hard to say. However, there could be a protagonist who is in search of the knife. Maybe there is an antagonist who wants to take the knife away from the protagonist. There could also be side characters like friends or family members of the main character who are involved in the story because of the knife.
I don't know for sure as I haven't read it, but likely the knife sharpener is one of the main characters. There might also be customers who bring their knives to be sharpened.
I don't know as I haven't read it. It could be a cook who uses the paring knife in his daily work.
As I don't know the 'little birds short story', I can't say for sure who the main characters are.
The main characters are the three bears (papa bear, mama bear, baby bear) and Goldilocks.
The little mermaid is obviously a key character. She is the one whose journey we follow. The human prince is the object of her love. He is a noble figure that the mermaid admires from afar and then tries to be with. And the sea witch is a very important character too. She is the one who enables the mermaid's transformation but also puts her in a very difficult situation with her strict conditions.
Perhaps the main characters are individuals who have committed some minor wrongdoings at a young age. They could be from a small town or community where their actions are noticed and judged. Maybe there is a leader among them who instigates most of the 'sinful' behavior and then there are others who follow along, either willingly or reluctantly.
I'm not sure as I haven't read it, but I assume the little fish is one of the main characters. There might also be other fish or sea animals like a big shark that could be a threat, or a friendly turtle that helps the little fish.
The main characters are the little mermaid herself, the human prince, and the sea witch.
The main character is surely the little witch herself. There might also be her pet, perhaps a black cat that accompanies her everywhere.