Officer Big Mac was McDonald's 1971 advertising character who served as a police officer in McDonaldland.
The character was designed as a personified Big Mac, with the burger's familiar ingredients represented in his appearance. His role gave McDonaldland a law-enforcement figure alongside its mayor, criminals, and other food-themed residents.
Officer Big Mac is easy to confuse with Captain Crook, another McDonaldland character, or with Mayor McCheese, the hamburger-headed civic leader. The titles matter: Officer Big Mac was the police character, while Mayor McCheese was the mayor.
McDonaldland characters helped McDonald's turn menu items and restaurant branding into a recurring fictional setting. Their presence was especially prominent in American television advertising during the 1970s and 1980s.