" David Copperfield " was a classic science fiction novel that told the story of the protagonist, David Copperfield, from a scientist to an astronaut. The following is an analysis of some of the important characters in the novel: 1 Tom Reed: David's classmate and best friend is a pilot who plays an important role in the novel. He was a brave, intelligent, and adventurous man who had supported David on his journey. 2 Jenny Gilbert: Tom's girlfriend is a psychologist who plays a crucial role in the novel. She helped David deal with many emotional problems and also showed her intelligence and wisdom. 3. Charles Straid: David's father was a scientist and an astronaut, and he also played an important role in the novel. He showed his courage and determination and had a great impact on David's growth. 4 Maria Callas: A mysterious scientist is a female astronaut that David met on a spaceship. Her role was very mysterious and had a profound impact on David's journey. 5 Harry Cliff: David's half-brother is a character who also plays an important role in the novel. His story showed his growth and the process of pursuing his dreams. These characters had their own unique personalities and experiences, and their relationships were very complicated. Through their stories and novels, they showed the courage and wisdom of mankind, as well as the challenges faced by technology and mankind in exploring the universe.