In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Sentence1: Caleb dressed as Batman for halloween. Sentence2: He ordered a costume that looked really cool. Sentence3: The chest part was extra huge on him. Sentence4: It made it difficult for him to move around. Sentence5: He had trouble carrying his trick or treat bag because of it.
Caleb