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: Maria was thrilled to go see her first musical in New York. Sentence2: She sat down in her seat filled with anticipation. Sentence3: A man came on the stage announcing that the main star was sick. Sentence4: Maria's eagerness vanished. Sentence5: And she stood up to leave the theater.
Main star, Man, Maria