Not having read the 'the last christmas tree story', I can only guess. There could be a character who is a forest ranger if the tree is from a forest. This ranger might be protecting the tree or helping it reach its destination. There could also be a family of animals that live near the tree in the forest and they have some kind of relationship with the tree. And of course, there would probably be the people who are going to decorate the tree and celebrate Christmas with it.
As I'm not familiar with the 'the last christmas tree story', it might have characters like a little boy or girl who discovers the last Christmas tree. There could also be a tree seller who has been trying to sell all the trees and this one is the last. And there may be some neighbors or friends who are involved in the story, like they help the main character get the tree or they have an opinion about the last tree.
Typically, there would be the littlest Christmas tree itself. There might also be characters like people who come to choose Christmas trees, perhaps a family or a group of friends. And there could be other Christmas trees in the story that contrast with the littlest one.
As I'm not familiar with the 'the smallest christmas tree story', it's all speculation. It could have a protagonist who is either a child or an adult who is drawn to the smallest Christmas tree. There may be other characters like neighbors who comment on the choice of such a small tree. And if it has a bit of a magical element, there could be some sort of Christmas spirit or fairy - like character that helps the small tree shine and become important in the story.
There might be the lonely Christmas tree itself as the main character. Maybe there are also some animals like squirrels or birds that interact with the tree, either by making it more lonely or perhaps befriending it.
Since I don't know the exact 'the last christmas tree story', it may tell the story of a special Christmas tree. It could be the last one left in a tree lot and how it finds its way into a family's home. Maybe it has a magical element to it, like it brings an unexpected amount of joy to the family that takes it in. Or it could be about the last tree in a dying Christmas tree farm and the efforts to revive the tradition of having Christmas trees from that place.
I'm not sure which specific 'last christmas tree story' you mean. There could be many stories related to the last Christmas tree. It might be about a family's special experience with their last Christmas tree, like how they decorated it, or it could be a story about a Christmas tree that was the last one in a store and what happened to it.
Since I haven't read the story, I can't say for sure. But it could be a couple, perhaps a man and a woman. Maybe there's also a character like a Christmas tree seller who plays an important role in bringing the two main characters together.
There isn't really one set list of main characters in the general legend of the Christmas tree. However, if we consider Martin Luther as part of the story, he could be considered a significant figure. He was inspired by the beauty of the fir tree, which influenced the use of Christmas trees in the way we know them today.
Since I don't know the exact 'willow tree Christmas story', it could have characters like a kind old man who takes care of the willow tree during Christmas. Maybe there's also a young child who discovers the magic of the willow tree at Christmas time.
Since I don't know the story, it could be a family, like a father, mother, and their children. They are often the main characters in Christmas - related stories about Christmas trees as they are usually the ones involved in finding and decorating the tree.
There's no way to be sure without reading the specific story, but it might include the person who discovers the ugly Christmas tree, perhaps a child or an old man. And there could be other characters like those who initially reject the tree.