Captain Crook was the pirate-captain character featured in McDonald's 1970s McDonaldland advertising world.
McDonaldland was a fantasy setting created for McDonald's advertising in the early 1970s. It populated the brand's commercials with characters who interacted in a colorful world built around McDonald's food and restaurant imagery. Captain Crook was one of the recurring figures in that setting and was associated with the Filet-O-Fish sandwich.
The character is sometimes confused with Officer Big Mac, who served as a police officer, or with the Hamburglar, whose identity centered on stealing hamburgers. Grimace was another major McDonaldland character, but he was not a pirate captain. These distinct roles helped viewers identify the characters quickly in television advertising.
Captain Crook was part of an era when McDonald's used a large cast rather than relying on a single mascot. The McDonaldland campaign became a major piece of the company's branding history, although the prominence of many characters later declined as McDonald's advertising adopted simpler messages and more product-focused campaigns.