Speedee was the chef mascot associated with McDonald's early Speedee Service System.
The smiling chef appeared in the company's early branding after the McDonald brothers redesigned their San Bernardino restaurant around fast, standardized service in 1948. Speedee's name connected the character directly with the central promise of the system: preparing a limited menu quickly and consistently.
Speedee was not the same character as Ronald McDonald, who became the chain's best-known mascot in the 1960s. The earlier mascot belonged to a period when McDonald's advertising focused heavily on operational speed rather than a large family of characters.
The name also created a historical link between the restaurant's visual identity and its business model. The Speedee Service System helped inspire the development of modern fast-food franchising and was later studied by Ray Kroc before he expanded the chain.