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: Cass wanted to be a cheerleader. Sentence2: She had never tried out before. Sentence3: She decided to take tumbling classes. Sentence4: She was nervous at tryouts. Sentence5: When names were announced, Cass made the squad.
Cass