Given the task definition and input, reply with output. 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: Thomas was planning on cooking some chicken for dinner. Sentence2: He had some frozen chicken thawing all day. Sentence3: When he went to begin cooking he was shocked by a foul odor. Sentence4: Somehow his fresh chicken had spoiled. Sentence5: Thomas vowed to never freeze meat again.
Thomas