Which McDonaldland character had a hamburger-shaped head and served as the mayor?

Mayor McCheese was the McDonaldland character with a hamburger-shaped head who served as the mayor.

McDonaldland was McDonald’s fictional advertising setting populated by human-like food characters and imaginative creatures. Mayor McCheese appeared as a civic leader wearing a formal mayoral sash, with a large cheeseburger for a head. The character helped give the restaurant chain a playful identity aimed especially at children.

Mayor McCheese is sometimes confused with Officer Big Mac, another McDonaldland figure. Officer Big Mac had a Big Mac-shaped head and a police role, while the Hamburglar was portrayed as a mischievous burger thief. McDonaldland characters became especially prominent in McDonald’s television advertising during the 1970s and 1980s.