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: Joe was falsely accused of stealing from his employer's cash register. Sentence2: His employer scheduled Joe for a polygraph test. Sentence3: Joe was very nervous but he passed the polygraph. Sentence4: Joe's employer never apologized for accusing Joe of the theft. Sentence5: Joe quit that job because the employer had such poor people skills.
Joe, Joe's employer