As a boy, Thomas Elliot, the childhood friend of Bruce Wayne, tried to murder his parents so he could inherit their fortune. His plan was thwarted when Bruce's father saved his mother's life, causing him to have a lifelong grudge against Bruce Wayne and waged a secret war against him as Hush.
Hush has a bandaged face, wears a brown coat, and a black undershirt. His weapons of choice are two (2) pistols.
Hush appears in several crimes that involve Killer Croc, Catwoman, Poison Ivy, Riddler, Ra's al Gul, Scarecrow, Clayface, Two Face, Harley Quinn, and The Joker. He is seen at the end of them standing in random areas "stalking" the people in them.