Hush

Tommy Elliot (a.k.a. Hush) is a villain from the Batman series. He and Bruce Wayne (Batman) were childhood friends, but they were also each others opposite. Hush became a villain at an early age, and managed to become a surgeon.

Batman: Arkham Asylum
Hush doesn't appear in the game Batman: Arkham Asylum. His name can be seen on the working schedule in the operation room. One of the Riddler's riddles revolves around him. He has an entry in the Character Bios. his profile states:

Tommy Elliot and Bruce Wayne were childhood friends and, unknown to Bruce, dark reflections of each other. A childhood sociopath, Elliot tried to kill his parents so he could inherit their fortune. When his plan failed partly due to the surgical skills of Thomas Wayne, Bruce’s father, Elliot blamed Bruce. An incredibly skilled surgeon as an adult, Elliot planned an elaborate revenge scheme on the Batman. He disguised himself as the villain Hush, his face covered in bandages, but he was in the end defeated and unmasked by the Dark Knight. Hush still plots revenge against Batman, generating complicated schemes with surgical precision.

Facts
Real Name: Thomas "Tommy" Elliot

Occupation: Surgeon

Base of Operations: Gotham City

Eyes: Brown

Hair: Reddish-brown

Height: 6 ft 3 in

Weight: 225 lb

First Appearance: Batman #609 (January, 2003)

Attributes

 * Great physical strength, augmented by a hatred of Bruce Wayne
 * World-class surgeon, capable of extraordinary medical breakthroughs
 * Master of disguise
 * Determined to destroy Bruce Wayne