Speedee was McDonald's first nationally advertised mascot.
Speedee appeared as a small chef figure and symbolized the Speedee Service System developed by Richard and Maurice McDonald. The brothers introduced that streamlined restaurant operating model in 1948, emphasizing a limited menu, standardized preparation, and fast service. Speedee's image helped communicate the restaurant's central selling point before Ronald McDonald became the dominant mascot.
The character is sometimes confused with Speedy Gonzales because of the similar name, but Speedee was created specifically for McDonald's branding. He was also distinct from later McDonaldland characters such as the Hamburglar and Mayor McCheese.
McDonald's gradually moved away from Speedee as its advertising became more family-focused. The golden arches and Ronald McDonald eventually carried much more of the public-facing identity, but Speedee remains important in the company's early visual history.