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: Roger is a secret agent. Sentence2: His watch has a grappling hook. Sentence3: He uses the watch to climb up a building. Sentence4: He steals important documents from a high profile target. Sentence5: Roger receives a promotion for his work.
Roger, Target

Sentence1: I was playing music on my CD player. Sentence2: I dropped the CD player. Sentence3: It didn't play music anymore. Sentence4: Then I found twenty dollars on the ground. Sentence5: I was able to buy a new CD player.
I (myself)

Sentence1: James found a robber in his house. Sentence2: He decided to get a gun for protection. Sentence3: He didn't know anything about guns, but he didn't care. Sentence4: That night, he heard a noise. Sentence5: He shot into the darkness and ended up hitting his cat.
James, Robber, Cat