I don't know as I'm not familiar with this story, so I can't tell who the main characters are.
Maybe the main characters are the kids who interact with the big box. It could be a group of friends, or siblings perhaps, who find this big box and their actions and reactions form the core of the story.
Since I don't know the exact story, I can't say for sure. But it's likely that the main characters are the kids. Maybe there's a brave leader among them, a shy one, and a really creative one.
Obviously, Shrinking Violet is one of the main characters. She is probably the focus of the story, and her personality or actions drive the plot forward. As for the Big Box Kids, they are also important. They might be friends, foes, or just a group that Shrinking Violet has to interact with. It's possible that they have different personalities among themselves, which will add more complexity to the story.
Obviously, the key characters are the shrinking violet, who is probably a shy or meek character. And then there are the big box kids. We don't know exactly how many big box kids there are, but they are a group that the shrinking violet has some sort of relationship with in the story.
I don't have enough information about 'the big box story' to determine the main characters. It could be a group of kids if it's a children's story, or it could be some sort of investigators if it's a mystery story related to the box.
I don't know for sure as the title doesn't give any hints about the characters. But in a typical Christmas story, there could be characters like a kind - hearted Santa Claus, an excited child, and maybe some helpful elves if it has a more traditional Christmas setting.
There are many popular characters. In 'Alice's Adventures in Wonderland', Alice is a very recognizable character. She falls down a rabbit hole into a strange world filled with odd creatures like the Cheshire Cat and the Mad Hatter. In 'Peter Pan', Peter Pan is a beloved character. He never grows up and takes the Darling children to Neverland where they have exciting adventures with the Lost Boys and fight against Captain Hook.
I'm sorry, I haven't read 'and the big box kids story' specifically, so I can't tell you the exact plot.
The 'big box kids story' could potentially revolve around a group of kids who discover a large box. Maybe the box has something special inside, like old toys that belonged to someone from a different time. They could start to imagine the stories behind those toys and have all sorts of fun adventures as a result.
I'm not sure exactly as I haven't read it in detail. But perhaps it could be about a shy character (the shrinking violet) and a group of kids associated with a big box. Maybe there are adventures or lessons learned within the story.
In big bad wolf kids stories, the big bad wolf takes center stage as the main villain. Then, in the story of the three little pigs, we have the three pigs as the protagonists. They are the ones who face the threat of the wolf. In Little Red Riding Hood's story, she is the main character. She is on her way to visit her grandma when she meets the wolf, and her actions and decisions drive the story forward.