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: Tommy had a pet cat named Toughie that only ate wet food. Sentence2: Every time he tried to give Toughie dry food the cat wouldn't eat. Sentence3: One time Tommy tried mixing the two together but it didn't work. Sentence4: Toughie was just far too intelligent and far too picky. Sentence5: Tommy wound up spending a small fortune on cat food for Toughie.
Toughie, Tommy