Chase is the PAW Patrol pup who serves as the team's police and security dog.
Chase is a German Shepherd whose equipment includes a police-style vehicle, a megaphone and a backpack containing tools used during rescue missions. His role commonly involves traffic control, tracking, crowd management and protecting the team during emergencies.
He is one of the six original pups introduced in the first season, alongside Marshall, Skye, Rocky, Rubble and Zuma. Chase is also frequently shown as one of the team's field leaders, although Ryder remains the human leader who assigns missions.
A common mix-up is confusing Chase's police role with Marshall's emergency role. Marshall is the Dalmatian firefighter and medic, while Chase handles security and police-related tasks. Tracker, another police-trained pup in some stories, is a separate character associated with jungle rescues.