McDonald's used the advertising characters known as the Fry Kids.
The Fry Kids were colorful, fuzzy characters associated with McDonald's french fries and the company's McDonaldland advertising world. They first appeared under the name Fry Guys and were later presented as Fry Kids, reflecting a change in the character concept and naming.
Their visual design made the connection to fries clear: the characters were often shown with long, colorful hair resembling french fries. Like many McDonaldland figures, they were created to make a menu item memorable to children through television commercials, packaging, and promotional materials.
The Fry Kids are sometimes confused with individual mascots such as Ronald McDonald or Birdie the Early Bird. They were a group of characters rather than one central spokesperson. Their branding role was product-specific, linking McDonald's fries to a distinct visual identity within the larger fictional world.