In some cases, it could be a group of characters. Say a family that lives in the house with the attic. Each family member might have a different reaction to the presence of the man in the attic, and together they form the main characters as they try to figure out what to do about the situation.
The main character could also be the person who discovers the man in the attic. Their reaction to the discovery and how they deal with it can be a central part of the story. For instance, if it's a young girl, she might be terrified at first but then grows curious about the man's story.
It depends on the specific version of the story. It could be the man in the attic himself, who might be a mysterious figure with a hidden past.
The main character is probably the boy in the attic. However, there could be other important characters as well. Maybe there's an older relative who owns the attic, or a friend who comes to find the boy in the attic. But based on just the name 'boy in attic story', the boy is the most likely main character.
A young girl. She could be the one who is brave enough to explore the attic and face the ghost.
One main element is secrecy. The person in the attic is usually there without the knowledge of the homeowners. Another element is often a sense of danger or unease. It can also involve intrusion, as the attic is part of someone's private property.
Since I don't know the specific 'the lover in the attic story', it's difficult to say. But typically, there would be the two lovers as the main characters. There might also be other characters like family members or servants who could play important roles in the story, either by being obstacles to the lovers or being unknowingly involved in their secret.
Since I don't know the exact story, I can't say for sure. But it could be a young man and a young woman who are the main characters. Maybe one is from a wealthy family and the other is from a lower class, and they have to keep their love a secret in the attic.
Perhaps there is an old caretaker of the house who has some knowledge about the attic and its contents. And, of course, there might be the family members whose past Christmases are somehow tied to the items in the attic. The main character could be a curious youngster, full of wonder, who leads the exploration of the attic and uncovers the stories hidden within it.
The'man in the attic story' might also be a mystery - like someone hears strange noises coming from the attic and when they finally investigate, they find a man. It could be about his backstory, why he's there, whether he has good or bad intentions. It could be that he was wrongly imprisoned in the attic by someone or he's there to protect a long - lost secret of the house.
Since I don't know the details of this story, it's difficult to say who the main characters are. But perhaps Tso is one of the main characters since the story is named after this term.
There are the children, especially Cathy who is a central figure. Then there is their mother who plays a crucial role in their situation. And the grandmother also has an important part in the story as she is involved in the family's secrets and the attic situation.
Typically, there would be family members such as parents, children, and maybe some extended family. But without reading it in detail, it's hard to name specific ones.