Ian MacDonald was an American actor and producer during the 1940s and 1950s. He is perhaps best known as villain Frank Miller in High Noon (1952).

High Noon is a 1952 American Western film produced by Stanley Kramer from a screenplay by Carl Foreman, directed by Fred Zinnemann, and starring Gary Cooper. The plot, which occurs in real time, centers on a town marshal whose sense of duty is tested when he must decide to either face a gang of killers alone, or leave town with his new wife.