He is a minor character in the game. He randomly walks around the headquarters, comforting people at random times.
Backstory
A few years after the company started, a little girl with a cat got a tour of the factory. A couple hours after she left, her cat was found stuck in a cardboard tube. The workers wanted to get rid of it, but Sarah decided to keep it. Months later, the little girl comes back to retrive the cat, and a different cat was bought just as a reminder of a funny story