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: Steve had been looking forward to game night all week. Sentence2: He and his brother were getting together to play Risk. Sentence3: They played for two hours and it was a very close game. Sentence4: In the end Steve was able to capture all of his brother's armies. Sentence5: Steve won the five dollars they had bet on the game.
Steve, His brother