Katie is a 9-year-old who manages the Adventure Bay Pet Parlor. She is usually seen with her beloved pet cat named Cali. She cares about animals and makes sure they are healthy, well-bathed, and happy.

She is great friends with Ryder and the pups, along with the children of Adventure Bay. She seems to be a big sister figure to Alex.

She is friendly and patient to just about everyone. She can get irritated by Rocky being stubborn about baths, though. She loves Cali with all her heart.