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: Brian is a photographer for a local newspaper. Sentence2: Brian became bored with his job and was considering a change. Sentence3: Brian decided to keep his job and begin a side business. Sentence4: Brian gathered his past works and created a website. Sentence5: Brian successfully started selling his photographs online.
Brian