In 'the stranger fiction', the main character is, of course, the stranger. This character might be someone with a mysterious past or a unique personality that sets them apart. There could also be supporting characters such as a friend or a foe of the stranger. The friend might try to understand and help the stranger, while the foe could be someone who is threatened by the stranger's presence.
In the book 'Stranger than Fiction', Harold Crick is the main character around whom the whole story revolves. He's a rather dull and routine - bound man at the start. Then there's the mysterious narrator. This narrator has a huge influence on Harold's life as they seem to be in control of the narrative of his life. Other characters include those in Harold's workplace, such as his boss and coworkers, and some of the people he meets during his attempts to figure out what's going on with his narrated life. But Harold and the narrator are the two characters that really carry the story forward.
The main character is Harold Crick. He is an IRS agent whose life takes a strange turn when he starts hearing a voice narrating his life.
The main character is Harold Crick, played by Will Ferrell. He's an ordinary man whose life gets turned upside down when he hears the narration. Another important character is Ana Pascal, a baker that Harold falls in love with. And there's also Professor Hilbert, who helps Harold understand the situation he's in.
Harold Crick is the central character in 'IMDb Stranger Than Fiction'. He's an IRS auditor whose life is turned upside down by a narrating voice. Ana Pascal is another main character. She's a feisty baker who has her own charm. And then there's Professor Hilbert, who tries to help Harold figure out what's going on with the voice in his head.
The main character is Valentine Michael Smith. He's the stranger in the strange land.
Well, the main character is probably the stranger. There might also be characters who interact with the stranger, such as the people in the place where the stranger arrives. They could be locals or people who have their own lives and routines that are disrupted by the stranger's presence.
In 'the stranger novel', the central character is Meursault. He is a character who stands out for his lack of conventional emotions. His actions are often based on impulse rather than following social norms. Besides him, there are characters like Raymond, who is involved in some rather seedy activities and whose relationship with Meursault reveals more about Meursault's character. And then there is Marie, who has a relationship with Meursault but even that relationship is rather strange as Meursault doesn't seem to have the typical feelings associated with it.
I don't know as I haven't read the book. But usually in a novel titled like this, there would be the perfect stranger as one of the main characters, and probably someone whose life gets intertwined with the stranger, like a protagonist who is affected by the stranger's presence.
I'm not sure which Coben novel this is exactly, so I can't name the main characters. But usually in Coben's novels, there are characters who are either in a difficult situation or are on a journey to discover something.
Since I don't know the story well, I can't say for sure. But there's probably the dark stranger as one of the main characters. There might also be someone who discovers the dark stranger or is affected by him.