Given the task definition and input, reply with output. 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: Bree was sitting in her living room. Sentence2: Suddenly, her cat came in from outside. Sentence3: She noticed that he had a huge knot in his fur. Sentence4: She took him to the bathroom and got the knot wet. Sentence5: Then, she slowly combed the knot out.
Bree, Cat