Chase is a German Shepherd who is the police, the spy pup and the second-in-command of the Paw Patrol. As a police pup, he is probably the most mature member of the PAW Patrol and always tries his best to stay serious when on a mission, but sometimes lets his emotions slip through (such as when he tells Skye that he was worried about her and immediately covers it up). When off-duty, he also has a playful side. He and Marshall are best friends and often playfully compete with each other.