The main character is the boy, of course. There could be an older figure, like a mentor, who helps the boy in his journey. Maybe there's a girl who becomes his friend or ally. There could also be some antagonists, like a bully or someone with bad intentions. All these characters together would create the complex web of relationships and events in 'the boy 2 story'.
Since it's called 'the boy 2 story', the boy is surely a main character. There might also be other characters like his parents. His parents could play an important role in his life, either guiding him or causing some conflicts. And perhaps there are some friends or foes that he meets along the way, who also contribute to the development of the story.
Since we don't have the details of 'the good boy story', it's hard to determine the main characters precisely. However, it's very likely that the good boy himself is the central character. In addition, depending on the nature of the story, there could be a teacher if the story is set in a school context, or a neighbor if the story involves community interactions. There may also be some antagonists, perhaps a bully or someone who tries to lead the good boy astray, which would create conflict and drive the story forward.
The main character in the Skater Boy story is the boy who loves to skate. But don't forget about the supporting characters. There could be an older skater who acts as a mentor to him, teaching him the ropes and showing him some of the coolest tricks. There may also be a girl at the skatepark who catches his eye, and this could add a bit of a romantic sub - plot to the story. Additionally, there are the other skaters in the local skateboarding community who together create the vibrant and competitive atmosphere that drives the skater boy's story forward.
The main character is the minstrel boy himself. He is the central figure around whom the story revolves.
In the 'Taro Boy story', perhaps there is an antagonist. This could be someone who is jealous of Taro Boy's abilities or someone who wants to cause trouble in his community. Alongside Taro Boy, there might be a kind - hearted girl who is Taro's friend and helps him in his quests. There could also be a village elder who is respected and whose advice is important to Taro Boy and the whole community.
In the case of the well - known religious story of David, aside from David himself, there are his brothers who were initially dismissive of him. Also, King Saul was an important character. Saul was the king at that time and was somewhat envious of David's success after he defeated Goliath. And of course, Goliath is a central character as the adversary that David had to face.
Since I'm not sure which 'Sheep Boy Story' you're referring to, generally the main character would be the sheep boy himself. He is likely to be the central figure around whom the story revolves.
The school boy is surely a central character. Then perhaps there's an older student who serves as a mentor to him. And a girl in his class that he has a bit of a crush on, which adds a bit of a romantic element to the story. Also, the school principal could be an important character who enforces the school rules and has an impact on the school boy's experiences.
I don't know for sure, but I guess there must be the burger boy himself. Maybe there's also a boss if he works at a burger place, or some regular customers who interact with him.
The main characters in the Wooden Boy story are Pinocchio, of course. He is the focus of the story as a living wooden puppet. Geppetto, his creator, plays an important role as he is like a father figure to Pinocchio. Then there is the Blue Fairy. She has magical powers and gives Pinocchio the chance to become a real boy. There are also other characters like the Fox and the Cat who try to mislead Pinocchio during his adventures.
I think Robot Boy himself is one of the main characters. There might also be the scientist who created him.