Speedee was the chef figure McDonald's first used as a mascot to represent its fast-service system.
Speedee appeared on early McDonald's signs and packaging as a smiling chef. The character's name echoed the Speedee Service System, the operating model created by Richard and Maurice McDonald in 1948. That model emphasized a restricted menu, assembly-line preparation, and quick customer service.
The mascot predates Ronald McDonald and the fictional cast of McDonaldland. As the company expanded and the Golden Arches became more important, Speedee disappeared from most public-facing branding.
This question can cause confusion because several McDonald's characters were chefs, clowns, or food-themed figures. Speedee is specifically tied to the chain's original speed-and-standardization concept, making him a branding link to the McDonald brothers' first restaurant system.