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: Glen and his girlfriend met up at her request for lunch. Sentence2: She told Glenn that she didn't love him anymore and wanted to breakup. Sentence3: Glen complied and went home very upset. Sentence4: He began to cry very hard for hours until his friend called. Sentence5: After the call, his friend picked Gwen up to go party.
Glen, Gwen, Friend