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.
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.
I recommend " Dressed as an Ancient Glamorous Man, Coaxing the Big Villain Every Day " and " Villain and Blondie." Both novels had plots where the female lead turned into a villain or a bad woman, and both had magic elements. The former was about the protagonist transmigrating into a Mary Sue novel and becoming a dark, ugly, and fat villain, and successfully counterattacking through the system, while the latter was about the protagonist transmigrating into a primitive fantasy world and becoming a yellow-haired villain, getting along with all kinds of strange characters and taking risks. I hope you like my recommendation.😗
The villain themselves would be the most interesting. Their journey from being a villain to embracing the light is full of potential for character development. They have to overcome their past, deal with their inner demons, and adapt to a new way of life. Also, any characters who oppose the villain's change could be interesting. They might be resistant to the idea of a villain becoming good and their reasons for that resistance can add depth to the story.
Since I haven't read the novel, I can't say for sure. But likely, the villain tyrant is a main character. There may also be some characters who oppose him, like a hero or a group of rebels.
I think the villainess herself could be really interesting. She's likely to have complex motives and a unique personality. Maybe she's not a typical 'bad guy' but has her reasons for her actions.