In 'The Shining', Jack Torrance is a main character. He is a writer who slowly descends into madness in the haunted Overlook Hotel. In 'It', the Losers' Club, including characters like Bill, Beverly, and Richie, are the main ones as they fight the evil Pennywise. In 'Carrie', Carrie White is the central character, a shy and bullied girl with extraordinary powers.
In 'Pet Sematary', Louis Creed is a key character. He makes the fateful decision to use the strange cemetery. In 'Misery', Paul Sheldon is the main character, the writer held captive by Annie Wilkes. In 'Salem's Lot', Ben Mears is important as he tries to fight against the vampires in the town. Each of these characters drives the plot forward in their respective novels.
I don't know which 1998 Stephen King story you mean, so I can't tell you the main characters.
Ralph Anderson is one of the main characters. He's a detective. And there's Terry Maitland, who becomes the prime suspect in a heinous crime.
There are several memorable characters in Stephen King horror stories. The Overlook Hotel in 'The Shining' could be considered a character in its own right, with its malevolent influence on those who stay there. Then there's Leland Gaunt from 'Needful Things'. He's this mysterious figure who comes to town and brings out the worst in people through the items he sells. And Paul Sheldon's ordeal at the hands of Annie Wilkes in 'Misery' makes both of them very memorable characters.
Pennywise from 'It' is very memorable. That clown with its shape - shifting abilities and its ability to prey on children's fears is truly terrifying. Then there's Jack Torrance from 'The Shining'. His descent into madness while staying in the haunted Overlook Hotel is a classic horror character arc. And Carrie White from 'Carrie' is also quite unforgettable. Her meek exterior that hides her powerful telekinetic abilities makes for a great character.
Stan Uris is another important character. He is more of the rational one in the group. Eddie Kaspbrak is a hypochondriac, always worried about his health, but still manages to be brave when it comes to facing It. Ben Hanscom is the overweight but kind - hearted boy who has a crush on Beverly. Mike Hanlon is the only black kid in the group, and he plays a crucial role in bringing the Losers' Club back together as adults to face It once again.
Typically, there would be the victims or the ones who experience the presence of the boogeyman. It could be a family, for example, with parents and children. Maybe a young child who is the first to sense the boogeyman's existence and then tries to convince the adults around them.
I'm not sure specifically which 1990 novel by Stephen King you're referring to. But typically in his novels, there are often ordinary people who are thrust into extraordinary situations. There might be a protagonist who is the central figure in the story, facing off against some sort of antagonist, which could be a human with evil intentions or a supernatural entity.
Typically, the main characters are those who come into contact with the monkey. They could be ordinary people who suddenly find themselves in the midst of this horror because of the monkey. But often, they are not named in great detail, just regular folks whose lives are turned upside down by the monkey's presence.
Jack Torrance is one of the main characters. He's a writer and the father in the family who is greatly affected by the hotel's evil. His son, Danny Torrance, is also very important. Danny has the 'shining' ability which allows him to sense things that others can't. And Wendy Torrance, Jack's wife and Danny's mother, is a key character as well.
There is Holly Gibney, a very intelligent and observant character. She helps in uncovering the truth behind the mystery. Also, there is Claude Bolton, whose experiences are intertwined with the strange events in the story.