Jerry Mouse (originally known as Jinx) is a fictional character and is one of two protagonists in Metro-Goldwyn Mayer's series of Tom and Jerry theatrical cartoon short films. Created by William Hanna and Joseph Barbera, he is a cute young 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. In the 2021 movie, his full name is revealed to be Jerome A. Mouse. In the fighting game MultiVersus, Jerry's full name is said to be Gerald Jinx Mouse.