Monterey Jack, the big mouse pal of the chipmunks, takes his name from a famous type of Mexican cheese. However, the character speaks with an Australian accent.
Series creator Tad Stones' original concepts for the series did not include Chip and Dale in the cast. Stones originally suggested a series based on The Rescuers, but Jeffrey Katzenberg rejected it, as work on The Rescuers Down Under was beginning in the feature department. Stones then developed a pitch called "Metro Mice," featuring a mouse character named Kit Colby as the main protagonist (as well as early versions of Gadget and Monterey Jack), but Katzenberg and Michael Eisner wanted known Disney characters as the stars. It was Eisner who suggested Chip and Dale.