Ronald McDonald

Ronald McDonald was an individual in Earth-33⅓ who was considered by that universe's Sixth Doctor to be one of the 'great men' who made the nation of America into "what it [had] become today", along with Mickey Mouse and Steven Spielberg, while Peri Brown thought more along the lines of George Washington, Benjamin Franklin, and Abe Lincoln. While standing with Mickey and Spielberg, all 3 of them ate hamburgers. (COMIC: The Incredible Doctor Who History Tour (No. 7.))

Behind the scenes
Ronald McDonald is a fictional clown, and the main mascot of McDonald's.