Dori Lowe Dori Lowe is a 38-year-old veterinarian and the person most responsible for saving Caitlin from her difficult life in Philadelphia. Of the Lowes, Dori is Caitlin's closest relative, so she believes it's her duty to step in and help. Dori was a city girl who traded skyscrapers for wildlife once too, so she can identify with Caitlin and becomes a truly positive influence on her cousin's life.