Mac Tonight was the McDonald's character with a crescent-moon head who promoted late-night dining in the 1980s.
McDonald's introduced Mac Tonight in 1986 for a campaign intended to encourage customers to visit restaurants during evening hours. His visual design—a character with a crescent-moon head, sunglasses, and formal evening styling—made the night-time theme immediately recognizable.
The campaign used a version of “Mack the Knife,” giving Mac Tonight a distinctive musical identity as well as a distinctive appearance. The character became associated with evening meals rather than breakfast or the general McDonaldland cast.
Mac Tonight is often confused with Birdie the Early Bird because both were occasion-specific characters. Birdie represented breakfast and morning, while Mac Tonight represented dinner and late-night visits.