Tessa is a human fascinated by Worker Drones and she would adopt or rebuild them from local landfills, often playing dress up with them and even going out of her way to give them hair, which other humans, such as James, found creepy. From the expression that J gives upon noticing her, she is somewhat of a boss to the various maids and butlers around Elliot Manor. She is accompanied by Cyn hiding behind her for assurance.