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: Barry entered his home and smelled something foul. Sentence2: He decided to investigate. Sentence3: He checked his roof and heaters and found nothing. Sentence4: Then he realized he left the stove gas on. Sentence5: He quickly rushed down and turned it off before it could cause damage.
A:
Barry