What was the name of McDonald's 1980s advertising character who was a pirate?

McDonald's pirate advertising character was named Captain Crook.

Captain Crook was one of the characters used in the McDonaldland universe. He was designed as a pirate-themed figure, giving the fictional setting another distinctive personality alongside Ronald McDonald, Grimace, and the Hamburglar.

The character appeared in McDonald's advertising and promotional materials during the era when the company used a large cast of food-related fantasy figures. His costume and mannerisms made him identifiable as a pirate rather than as a restaurant employee.

Captain Crook is easily confused with Officer Big Mac, who was associated with law enforcement, or with the Hamburglar, whose role centered on stealing hamburgers. Those characters occupied different parts in McDonaldland's cast.