I'm not familiar with the novel so I can't name the specific main characters. However, in this type of story, there may be some side characters that are important too. For example, the young backer might have friends or family members who play a role in the story. Their reactions to the young backer's association with the villain could be a significant part of the plot. Also, the villain might have a group of followers, and one of them could be a key figure in the story as well, interacting with the young backer in different ways.
I'm not sure specifically as I haven't read this particular novel. It might be about a young character who somehow supports or is related to a villain in the story. Maybe the young one provides assistance, whether it's financial, strategic, or emotional, to the villain's schemes.
I don't know for sure as I haven't read the 'villain days novel'. But I would assume there would be at least one main villain character. There could also be characters who oppose the villain, like heroes or other characters caught in the middle of the villain's actions.
Since I don't have the details of this particular 'Caught by the Villain' novel, generally speaking, the main character is the one who is caught, let's call them the hero. The villain is another main character. There could be other important characters like a mentor figure who might have given the hero some skills or knowledge before they got caught, or a fellow captive who teams up with the hero to escape from the villain.
Since I haven't read it, I can't say for sure. But typically, there would be a protagonist who is the one aiming to kill the villains. There might also be sidekicks or allies that help the main character in their quest.
Since I haven't read it, I can't say for sure. But it's likely that there is the villain, of course. There might also be a protagonist who is in opposition to the villain, perhaps a hero or someone with a strong moral compass who is trying to thwart the villain's plans.
In 'I am the Villain' novel, the central character is the villain. There could be a mentor - like figure who either guided the villain in the wrong direction or is now trying to correct their ways. There may also be a rival villain who competes with the main villain for power or territory. And don't forget about the ordinary people in the story, whose lives are affected by the actions of the villain and the other main characters.
In 'The Villainess Reverses the Hourglass', the main character is Aria. She was a villainess but gets a chance to change things. In 'I'm the Villainess, So I'm Taming the Final Boss', the female lead is the villainess who has to deal with the final boss. Often, the main characters in these novels are villainesses who are trying to rewrite their fates, either by changing their personalities or their actions in the story.
Since I don't know the specific 'villain is courting death novel', I can't say for sure. But most likely, there would be the villain as a main character. There might also be a hero or heroes who oppose the villain.
Well, there's the protagonist who is the one that mistakenly saves the villain. And of course, the villain is also a main character. But without more information about the specific novel, it's hard to say much more about them.
I'm not sure specifically as I haven't read it yet, but it's likely that the villain is a main character. There might also be characters related to the places the villain visits during the vacation, like local inhabitants or other vacationers.