Zenas Winsor McCay (c. 1866–71 – July 26, 1934) was an American cartoonist and animator. He is best known for the comic strip Little Nemo (1905–14; 1924–26) 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.