Peter Parker is of course the most important character. He is Spider - Man. Aunt May is also important as she is Peter's family and has an influence on his moral compass. MJ, Mary Jane Watson, is another key character. She has her own story and her relationship with Peter is complex. Then there are the villains like Kingpin, a powerful crime lord. Mister Negative is also a significant bad guy with his own motives and powers.
Some of the main villains in Insomniac Spider - Man 2 are Kraven the Hunter and Venom. Kraven is a formidable foe known for his hunting skills, and Venom brings his own unique set of challenges with his symbiotic powers.
The main plot points in the Insomniac Spider - Man story include Peter's growth as a hero. He starts off trying to do good in the neighborhood but soon gets involved in much bigger threats. The conflict with Mister Negative is a huge part. Mister Negative has his own plans for the city which are not good. And Peter also has to face his past, like his relationship with his old friend Harry Osborn which ties into some of the more complex storylines about Oscorp and the experiments they've been doing.
Well, in the story of Insomniac Spider - Man 2, one of the important plot aspects is the growth of the relationship between different characters. For example, Peter's relationship with his friends and family might change as a result of his superhero activities. And then there's the whole thing about the new threats in the city. These new villains have their own motives and powers, which creates a complex web of storylines. It's not just about fighting bad guys; it's also about how Spider - Man evolves in this new situation.
Peter Parker is definitely one of the main characters. Aunt May and Uncle Ben are also likely to be important characters in the prequel novel as they are crucial in Peter's life.