The Big Mac became the basis of the Officer Big Mac character in McDonald's branding.
Officer Big Mac was one of the McDonaldland characters created for McDonald's advertising. His appearance used the Big Mac as a visual motif, linking a fictional police officer directly to one of the company's signature menu items.
McDonaldland advertising often turned menu products into characters or props. That approach made products easier for children to recognize while giving McDonald's commercials a consistent fantasy setting. Officer Big Mac was presented as a law-enforcement figure within that world.
The character is sometimes confused with Mayor McCheese, whose head was also based on a McDonald's food item. Mayor McCheese represented a cheeseburger, while Officer Big Mac specifically referenced the Big Mac. The names therefore identify different characters and different branding roles.