In this story, Nicki is an important character as his lost mitten sets the whole story in motion. Then there are the animals. The mole is one of the first to enter the mitten. The rabbit, which is probably looking for a warm place too, also goes in. The hedgehog is another character. And of course, the big brown bear that causes all the chaos when it tries to get into the already crowded mitten.
The main character from the human side is Nicki. His mitten is like a magnet for the forest animals. Among the animals, the mole is significant as it starts the chain of events by entering the mitten. The rabbit and hedgehog add to the growing group inside the mitten. But the bear is a very important character too. His large size and powerful sneeze are the climax of the story, scattering all the other animals that had been peacefully inside Nicki's mitten.