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: Michael loved to play basketball, but wasn't very good. Sentence2: He tried out for his high school team and got cut. Sentence3: He practiced every single day for many hours. Sentence4: The next year he had a growth spurt. Sentence5: He made the team and went on to be a star.
Michael, His high school team