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: Sam's glasses broke while he was playing football. Sentence2: They snapped in half right in the middle. Sentence3: Sam had to use tape to hold them together. Sentence4: He was embarrassed - until his brother said he resembled Harry Potter! Sentence5: Then Sam was proud of his cool, stylish glasses!
Brother, Harry potter, Sam

Sentence1: The group got together in front of the ice skating ring. Sentence2: When we tried to open the front door, it wouldn't open. Sentence3: The janitor told us that the place is closed for today. Sentence4: However, Pedro proposed that we should get something to eat. Sentence5: Therefore, I drove everyone to a nearby restaurant.
I (myself), Janitor, Pedro, The group

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