Zenas Winsor McCay (c. 1866–1871 – July 26, 1934) was an American cartoonist and animator. He is best known for the comic strip Little Nemo (1905–1914; 1924–1927) and the animated film Gertie the Dinosaur (1914). For contractual reasons, he worked under the pen name Silas on the comic strip Dream of the Rarebit Fiend.
From a young age, McCay was a quick, prolific, and technically dextrous artist. He started his professional career making posters and performing for dime museums, and in 1898 began illustrating newspapers and magazines. In 1903 he joined the New York Herald, where he created popular comic strips such as Little Sammy Sneeze and Dream of the Rarebit Fiend. In 1905, his signature strip Little Nemo in Slumberland debuted—a fantasy strip in an Art Nouveau style about a young boy and his adventurous dreams. The strip demonstrated McCay's strong graphic sense and mastery of color and linear perspective. McCay experimented with the formal elements of the comic strip page, arranging and sizing panels to increase impact and enhance the narrative. McCay also produced numerous detailed editorial cartoons and was a popular performer of chalk talks on the vaudeville circuit.