Casey McMurtry

Casey is in a relationship with Tim. Casey was a professional barrel racer. She is the one who convinced Tim to start his rodeo school in the first place.

Early on in Casey and Tim's relationship, Casey mentions wanting to settle down and shows Tim a real estate listing for a ranch. Tim, thinking that Casey is hinting about moving in together, tries to play it cool but ultimately cracks when Casey tells Tim that she purchased the ranch. Casey then explains that she wanted to purchase the ranch for herself, not for the two of them, to Tim's relief.

Casey is also the aunt of Clay and Wyatt, and takes in Wyatt's stepmom, Jen,, after her husband passes away. Casey organizes rodeos, having one dedicated to fighting cancer in the name of her late husband. At one point, Casey hosts a collaborative barrel racing session at Tim's rodeo school.

Right before Tim leaves with Amy to go to Mongolia, Tim tells her that he needs to break up, telling her that she needs space. A few days after Tim, Amy and Ty return, Casey arrives, seeking answers from Tim while he babysits Lyndy and Jasper, who consumes chocolates. After rushing Jasper to the vet, Tim initially tells Casey that he doesn't love her anymore, only to later tell her the truth about his brain tumor, admitting that he wanted to protect her from this as she had already lost Hank, her late husband, to cancer.