Which McDonald's character was depicted as a police officer in McDonaldland?

Officer Big Mac was depicted as a police officer in McDonaldland advertising.

Officer Big Mac was one of the costumed and anthropomorphic characters used in McDonald's fictional advertising world. His name and appearance connected him to the Big Mac, while his role gave the character a law-enforcement identity within the McDonaldland cast.

He is frequently confused with Mayor McCheese, another character whose head represented a McDonald's sandwich. The Hamburglar was also associated with wrongdoing, but he was presented as a mischievous thief rather than a police officer. These characters were part of the same broader branding system, but each had a distinct name and role.