Jeremiah "Jerry" Mouse is a fictional character and one of the two main protagonists in Metro-Goldwyn Mayer's series of Tom and Jerry theatrical cartoon short films. Created by William Hanna and Joseph Barbera, Jerry is a brown house mouse, who first appeared as an unnamed mouse in the 1940 MGM animated short Puss Gets the Boot. Hanna gave the mouse's original name as "Jinx", while Barbera claimed the mouse went unnamed in his first appearance.