Detailed Instructions: 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: Today my professor didn't show up to class. Sentence2: He didn't tell us beforehand. Sentence3: My classmates and I were unsure about what to do. Sentence4: We all waited in the classroom for a long time. Sentence5: Eventually we all got tired of waiting and left.
A:
I (myself), Professor