If it's not about the Disney movie, it could be any characters created for that particular 'frozen read aloud story'. It might be a group of explorers in a frozen tundra, so the main characters would be those explorers. They could have different personalities, like the brave leader, the scientific expert, and the joker of the group.
A 'frozen read aloud story' might be related to the Disney movie 'Frozen'. It could be a retelling of the story of Elsa and Anna, their relationship, Elsa's powers, and how they overcame the challenges in their kingdom that was once frozen. It could also include the other characters like Olaf and Kristoff and their adventures in the frozen land.
The main characters are the Lorax and the Once - ler. The Lorax is the protector of the Truffula forest and the animals that live there. He tries to stop the Once - ler from cutting down all the trees.
The main characters are Jack and the giant. Jack is the young boy who climbs the beanstalk and steals from the giant. The giant is a big, scary figure who lives in the castle in the clouds and owns the treasures that Jack takes.
Pete the Cat is the main character of course. He is the one that the whole story revolves around.
The main characters are the mouse and the Gruffalo. There are also other animals like the fox, the owl and the snake.
If it's not about the Disney movie, it's really hard to say. It could be a story about a group of explorers in a frozen land, in which case the main characters could be the explorers themselves. They might have names like Jack, Tom, and Mary, and each of them could have different skills and personalities that help them survive in the cold environment.
The main characters in 'the mitten read aloud story' are the little mouse which starts the adventure by finding the mitten. Then there are other animals like the rabbit who is likely looking for a warm place too. The fox also plays an important role as it enters the mitten later. And don't forget about the mitten itself which serves as the central place where all the action happens.
The main characters are the letters of the alphabet.
Since I don't know the exact 'the frozen girl story', it's difficult to say. But most likely, the main character would be the girl herself. There might also be other characters like her family members if the story is about her getting frozen in a normal setting, or perhaps a rescuer if she's in a dangerous frozen situation.
I don't have enough information to tell who the main characters are in the 'frozen reading story'.