Well, the ugly little boy is the central figure. There might be a parental figure in the story, perhaps his mother or father, who could either be ashamed of him or protective. And then there could be other children in the area who either bully him or befriend him, which would shape the boy's experiences in the story.
The main character is obviously the ugly little boy. There may also be other characters such as the people in the community where he lives. They could be neighbors or local townsfolk who interact with the boy in different ways, either being cruel due to his appearance or showing some kindness.
The ugly little boy is the main character. In addition to him, there may be an adult figure like a teacher or a local shopkeeper. The teacher could play a role in the boy's education and how he is treated at school, while the shopkeeper might show different attitudes towards the boy when he comes to buy things, depending on the shopkeeper's own view of the boy's appearance.
Isaac Asimov's 'The Ugly Little Boy' is likely to be a story full of emotional depth. It might explore the relationship between the boy and the other characters. For example, there could be a character who sees beyond the boy's appearance and befriends him, while others shun him. The story could also touch on the idea of self - acceptance for the boy, as he comes to terms with how he is perceived by others and learns to value himself regardless of their opinions.
There's an astronomer in 'Nightfall' who plays a crucial role. He's the one who discovers and tries to warn others about the coming nightfall. Another important character could be the religious leaders. They have a certain view of the world based on the constant light, and their reactions to the idea of nightfall are significant in the story.
I'm not entirely sure as I haven't read the story lately. But typically in Asimov's works, the main characters are often intelligent, inquisitive individuals. In 'Youth', they might be young people with a thirst for knowledge or adventure.
One of the main themes is the relationship between humans and technology. Asimov often explored how technology could both benefit and potentially harm humanity. For example, in his Robot series, the Three Laws of Robotics were designed to control the actions of robots, but they also led to complex moral and ethical dilemmas.
I'm not sure as there are many of his works that could potentially be considered a'school story'. But it could be students, teachers, or school administrators. Maybe a brilliant student who is the protagonist and faces various challenges in the school.
One memorable character is R. Daneel Olivaw from the Robot series. He is a robot with a highly developed sense of ethics and morality, often finding himself in situations where the Three Laws of Robotics are put to the test. His interactions with human characters, like Elijah Baley, are really interesting.
Another theme is the relationship between humans and machines. Asimov explores how humans can co - exist with intelligent robots, whether it's through cooperation or conflict. For example, in some novels, robots become so advanced that they are almost indistinguishable from humans, blurring the line between the two.
One main idea is the exploration of robot consciousness. The idea of robots dreaming implies a level of internal mental activity that we don't usually associate with machines.
One of the main themes is science and technology. Asimov often explored how new inventions and scientific concepts could impact society. For example, in some stories, he delved into the implications of artificial intelligence. Another theme is human nature. He showed how humans react to extraordinary situations, like in stories where they face alien encounters. Also, his stories sometimes touch on the concept of future civilizations and how they might be organized.
Main characters in Asimov's short stories can be diverse. You have the explorers, those brave individuals who venture into the unknown, whether it's deep space or uncharted parts of Earth in a post - apocalyptic future. There are also the scholars, the ones who study the ancient texts or try to understand the new phenomena that are emerging in their world. And don't forget the children. In some stories, children play a crucial role as they are often more open - minded and can adapt more easily to the strange new situations that Asimov creates.