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: Kirk went to the bank to deposit a check. Sentence2: He was very late for work but stood in line anyway. Sentence3: The line moved very slowly. Sentence4: To pass the time he took a lollipop in one of the bowls. Sentence5: He had finished the lollipop when it was finally his turn.
Kirk