Which McDonald's character is depicted as a masked thief who tries to steal hamburgers?

The Hamburglar is McDonald's masked character who tries to steal hamburgers.

He was one of the best-known figures in McDonaldland advertising. The character's identity was built around playful hamburger obsession: his name combines “hamburger” with “burglar,” and his stories typically involved attempts to take McDonald's burgers while other characters reacted.

The Hamburglar's appearance changed substantially. Early versions were short and childlike, while the later redesign presented him as a taller, slimmer figure in a black outfit and red clothing. The recurring costume elements helped audiences recognize him even as the advertising style evolved.

The character was not presented as a realistic criminal. His thefts were cartoon situations used to create conflict and humor in family advertising, alongside Ronald McDonald, Grimace, Mayor McCheese, and other McDonaldland figures.