I don't know for sure, but obviously the billionaire is one of the main characters. And the twins themselves must be important too. There may also be other characters like the billionaire's family members, business partners, or perhaps a nanny who helps take care of the twins.
Well, perhaps it could be a story centered around the chaos and joy that these surprise twins bring into the billionaire's world. It could cover aspects like how he deals with the new responsibilities of fatherhood while also managing his business empire. There might be drama involving family members' reactions, and it could also explore the twins' own growth and development in a wealthy and complex family environment.
The main characters would surely be the billionaire's twins. Since they are the ones playing matchmaker, they are central to the story. Then there could be the characters they are matchmaking for. Maybe there's a young couple, one from a poor background and the other from a wealthy but snobbish family. And the billionaire parent could be a character who either supports or opposes the twins' matchmaking efforts, adding more drama to the story.
I don't know as I haven't read it. Maybe the billionaire's children or other relatives who are in line to inherit.
Not having read the 'the twins novel', it's hard to be certain. But the twins must be central characters. They could have different personalities, say one is more outgoing and the other more introverted. And around them, there could be characters like their neighbors. If it's a historical 'the twins novel', there might be historical figures interacting with the twins in some way. It could also be that there are antagonists in the story, people who oppose the twins for some reason, and these antagonists would also be important characters in the overall narrative.
Since I'm not familiar with this particular novel, it's difficult to determine the main characters precisely. However, in addition to the billionaire, there may be antagonists such as rival business moguls who try to thwart his alternate plan. There could also be characters like his personal advisors or friends who either support or question his decisions regarding the plan.
Since I haven't read it, I can only guess. Obviously, the billionaire is one of the main characters. And his missing darling would be another main character. There might also be some sort of antagonist, like someone who has a vendetta against the billionaire and is involved in the disappearance of his darling.
I don't know for sure, but I'd assume the female billionaire is a main character. There might also be her business partners, rivals, or people in her personal life like family members or love interests.
I don't know the exact main characters as I haven't read it. But it would likely include the billionaire, who is the target of the bribery and the one seeking revenge. And there must be the character or characters who attempt the bribery.
In this novel, the billionaire is surely a central figure. He's the one with the power and the secret. The woman who has the baby with him is another key character. She might be an ordinary person or from a different social strata compared to the billionaire. Additionally, there could be characters like the billionaire's lawyer or confidant who play important roles in dealing with the consequences of the secret baby.
Since I haven't read it, I can't say for sure. But it's likely there's the billionaire himself and the accidental bride as the main characters.