McDonald's first advertising mascot, introduced in 1948, was Speedee.
Speedee was a chef-like character associated with the restaurant's early Speedee Service System. The name emphasized the fast preparation and service that distinguished McDonald's from many traditional restaurants. He was usually shown wearing a chef's hat and was linked to the original hamburger-focused identity.
Speedee predates Ronald McDonald and the later group of colorful McDonaldland characters. Many people remember Ronald as McDonald's first mascot because he became the company's most famous character, but Ronald did not appear until the 1960s.
The Speedee branding also reflects McDonald's early history before the Golden Arches became its dominant visual symbol. As the company expanded and developed a more recognizable national identity, the character gradually disappeared from mainstream advertising. The Speedee name remains an important clue to the restaurant's original emphasis on speed, standardization, and a tightly organized service system.