Mac Tonight was the moon-faced McDonald's advertising character used to promote late-night dining.
The character appeared in a McDonald's campaign that began in 1986. Mac Tonight wore sunglasses and sang a version of “Mack the Knife,” linking the character's name and imagery to evening entertainment and nighttime restaurant visits.
Mac Tonight is distinct from McDonald's earlier and longer-running characters. Speedee represented fast service, while Ronald McDonald became the best-known central mascot of McDonaldland. Mac Tonight instead had a specific promotional role centered on the evening period.
The campaign became especially recognizable in the United States, although the character was not used as a permanent global mascot. Its branding shows how McDonald's sometimes created characters for particular dayparts, audiences, or advertising themes rather than for the entire corporate identity.