Which McDonald's mascot had a cheeseburger-shaped head and served as a police officer?

Officer Big Mac was the McDonald's mascot with a cheeseburger-shaped head who served as a police officer.

Officer Big Mac belonged to the McDonaldland cast, a fictional advertising world populated by humanized food items and other characters. His design combined a law-enforcement uniform with a large Big Mac for a head, turning a menu product into a recognizable character.

The character is easy to confuse with Mayor McCheese, another burger-headed figure. Mayor McCheese wore formal civic clothing and was the mayor, while Officer Big Mac acted as McDonaldland's police officer. Both appeared in the same general advertising universe.

The character demonstrates how McDonald's branding connected individual menu items with personalities and stories. McDonaldland advertisements were especially visible during the 1970s and 1980s, when recurring mascots were a major part of children's fast-food marketing.