Dream of the Rarebit Fiend is a newspaper comic strip by American cartoonist Winsor McCay, begun September 10, 1904. The strip had no continuity or recurring characters, but a recurring theme: a character has a nightmare or other bizarre dream, usually after eating a Welsh rarebit—a cheese-on-toast dish. The popularity of Rarebit Fiend and Nemo led to McCay gaining a contract in 1911 with William Randolph Hearst's chain of newspapers with a star's salary. His editor there thought McCay's highly skilled cartooning "serious, not funny", and had McCay give up comic strips in favor of editorial cartooning. McCay revived the strip in 1923–1925 as Rarebit Reveries, of which few examples have survived.
A number of film adaptations of Rarebit Fiend have appeared, including Edwin S. Porter's live-action Dream of a Rarebit Fiend in 1906, and four pioneering animated films by McCay himself: How a Mosquito Operates in 1912, and 1921's Bug Vaudeville, The Pet, and The Flying House. The strip is said to have anticipated a number of recurring ideas in popular culture, such as marauding giant beasts damaging cities—as later popularized by King Kong and Godzilla.
The Pet depicts a couple who adopt a mysterious animal with an insatiable appetite. It consumes its milk, the house cat, the house's furnishings, rat poison, and passing vehicles, including airplanes and a blimp, while growing larger and larger. As it wanders among the skyscrapers of the city a swarm of airplanes and zeppelins gather to bomb the beast.
A Rarebit Fiend strip from March 8, 1905, inspired The Pet, which was released in 1921. The dark film was the last over which McCay had "total creative control", according to McCay biographer John Canemaker.[64] Cartoonist Stephen R. Bissette called it "the first-ever 'giant monster attacking a city' motion picture ever made".