Marshall is the deuteragonist of PAW Patrol.
From the firehouse to his fire truck, Marshall is a Dalmatian who is all action, easily excited, and the clumsy one of the group. The pups will always hear Marshall say; "I'm okay!"
Marshall has spotted white fur covering his body and bright blue eyes. During missions, Marshall typically wears a firefighter helmet and a red vest. He also wears a red backpack, which features a water cannon (acting as a fire hose). When his medical skills are put to practice, Marshall 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). This is his EMT uniform.
Marshall appears in every episode of PAW Patrol. He debuted in "Pups Make a Splash."