I don't have enough information to tell who the main characters are. It could be a group of spies with different skills and personalities.
I'm not sure specifically as I haven't read this 'spy society an aka novel'. It could be about a secret society involved in espionage, with lots of intrigue, mystery, and perhaps a hero or heroine trying to uncover the truth within this shadowy world.
I don't know as I haven't read the novel. But it's likely that the great doctor is one of the main characters.
Since I don't know the story, I can't say for sure who the main characters are. But it's likely that the big sister is one of the main characters, and perhaps there are other family members or friends involved.
I'm not sure specifically as it depends on the particular spy camp novel. But usually there are trainees, instructors, and maybe some villainous spies.
In the 'spy classroom novel', the main characters are likely to be the trainees in the spy classroom. Some may be the best in combat, some might be excellent at decrypting codes. There could also be a teacher or instructor figure who guides them through their training and missions. These characters interact with each other, and their relationships play an important role in the story.
Since it's a 'spy kyoushitsu novel', the main characters might include a young and intelligent student who discovers the world of spying within the classroom. There could also be a mysterious figure, perhaps a janitor or a visiting lecturer, who is actually a high - ranking spy guiding the protagonist. And of course, there may be some antagonists like other spies from rival organizations trying to disrupt the operations happening in the classroom.
In a 'spy ninja novel', the main character is likely to be the spy ninja. This character would be the focus of the story, with their actions driving the plot forward. There could also be other important characters, such as the villain they are up against. This villain might be a powerful criminal or a rival spy. Additionally, there could be supporting characters like the spy ninja's friends or allies from their spy or ninja community. They might provide help, information, or be in need of rescue at some point in the story.
Often in Mathews' spy novels, there could be a female character who is just as important as the male ones. She might be a tech - savvy agent who can hack into any system. There could also be an older, more experienced spy who acts as a mentor to the younger agents in the story.
I don't know as I haven't read it. Maybe there's a spy named after a salamander or someone who has a special relationship with salamanders.
I don't know the main characters in 'the spike spy novel' as I haven't read it. It could have a suave and intelligent spy as the protagonist, perhaps named after the'spike' or associated with it in some way.