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: Tom was in a hurry to get to work. Sentence2: He didn't have enough time to match his socks. Sentence3: At the office his co-workers made fun of him. Sentence4: His boss questioned his attire as well. Sentence5: Tom never made that mistake again.
Boss, Co-workers, Tom