Gillie Groats is a farmer who helps milk dairy cows for her family's business. She is the daughter of Seth Groats and has an unnamed husband.
She helps players with obtaining milk, telling them where to buy buckets, offering to give them a bucket, and helping them if they try milking a cow without a bucket. During Cook's Assistant, she lets players use her prized dairy cow to obtain the top-quality milk needed to bake a cake, considering it an honour to help. If the player tries to milk a cow without a bucket, she laughs and says it's clear they've never milked a cow before and are likely from a city.