Marshall is a Dalmatian who is the firefighter and the medical pup of the Paw Patrol. Marshall has spotted white fur covering his body and bright blue eyes. During missions, He is typically wears a firefighter helmet and a red vest. He also wears a red pup-pack, which features a water cannon (acting as a fire hose). When his medical skills are put to practice, He wears a red cap with a yellow trim (replacing his firefighter helmet), and his pup-pack contains medical supplies such as bandages and a thermometer (in place of the water cannon).