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.
Q: Sentence1: Thomas was very competitive at video games. Sentence2: Once, he lost a game and got very angry. Sentence3: He got so angry that he threw his controller on the floor. Sentence4: The controller smashed and it was totally unusable. Sentence5: He learnt that day, that violence and anger doesn't solve problems.
A:
Thomas