Hush

History

Tommy was a close child hood friend with Bruce Wayne ( Batman). Both were born into wealthy and rich families. Bruce's    father, Thomas, was happy to see the children friends, something he thought Bruce needed so much. The boys loved to play strategy games, but Tommy was always able to outmaneuver Bruce. However, Elliot hated his parents as a boy. Driven by his want for independence and wealth, he cut the brakes on his parents' car and convinced their chauffeur to stay home that night, which led to the death of his father. However Bruce promised Tommy his dad would save his parents and even though he failed to save his father he was able to his mother. However this enraged young Elliot. He took his out anger on Bruce, who promised Elliot that his parents would be saved, and attacked his childhood friend. To Bruce's shock, Dr. Wayne scolded him when he fought back, and comforted Elliot like a father would a son, something Bruce never fully forgave his father for. Meanwhile, Elliot's rage was fueled by the murder of the Waynes, which put Bruce Wayne in just the situation Elliot wanted himself. His hopes for ruined, he decided to wait for a lucky day.  
  

Family issues

Elliot's mother later came down with cancer. While he went on to Harvard and became a successful surgeon, Elliot continued to hold an irrational grudge towards his childhood friend for having the "good fortune" he never had.Later on at some point in his career, Elliot became the doctor of Edward Nigma aka the Riddler. Nigma, was diagnosed with terminal cancer and decided to use one of Ra's al Ghul's Lazarus pits. In the insanity (or, as Nigma called it, clarity) that followed, Nigma uncoveredthe truth that Batman was Bruce Wayne. Elliot, was amazed that Nigma had been able to completely remove the cancer and confronted him about it. Nigma says he thought Elliot would want to pay a fortune for a cure, since his mother died from cancer, but they discovered that they both had a common hatred for Bruce Wayne. Elliot and the Riddler decided to bring him down. Elliot created for himself the identity of Hush, a mysterious, trench-coated criminal with his head wraped in bandages who often quotes Aristotle. His identity came from Scarecrow singing, "Hush Little Baby", (which is incidentally a nursery rhyme about a child who couldn't be pleased) around Elliot.

The two convinced and manipulated several other villains to help such as the Joker, Harley Quinn, Two-Face, Poison Ivy, Scarecrow, Killer Croc and Clayface and even got Clayface, as well as Jason Todd, the second Robin, who was thought to be dead got involved. Even Superman thanks to kryptonite-laced pheromones given off by Poison Ivy, and Catwoman began to fall in love with Batman possibly due to Poison Ivy's pheromones.

Hush and the Riddler set up an elaborate plot against Batman, they started with cutting the batrope with a batarang; inflicting on Batman near-fatal head trauma, for which Elliot performed surgery; getting Batman into a brawl with Superman; Elliot faking his own death and framing the Joker for it, provoking Batman into almost killing his archenemy; making Batman believe Jason Todd had returned to destroy him however this proved to have only been Clayface mimicing Jason ; and even the killing of Harold Allnut. Throughout some of these events a man with bandages on his face and a trench coat would appear in the background and quote Aristortle and in only some of these instances is that man Tommy Elliot.

Elliot finally revealed himself to a tired Batman and the truth about the Elliots' murder and Elliot's feeling about Bruce. The two ensue in a vicious battle while Hush continues to taunt Batman reminding him of their past and thus distracting him. Hush keeps Batman at bay at first using his handguns but also engages Batman in hand to hand combat and is able to hold his own. Hush finally is able to beat Batman by shooting an explosive he had planted on the Batmobile resulting in the splash damage to hit Batman from behind.

Hush is shot by Harvey Dent

 However, Batman was saved by the intervention of Harvey Dent, who had been cured of his condition and his face healed by Elliot. He betrayed the villain by alerting former police commissioner James Gordon of the plot on Batman's life. Dent wound up shooting Hush twice, pushing him off a bridge. Batman jumps in to the water both in an attempt to save him and uncover his identity. His body was never found; Superman has since suggested that it had been lost at sea. The courts wouldn't charge Dent without proper evidence or a body, he was cleared of all charges and released. Thanks to Superman's x-ray vision, it was learned that Elliot had placed a tracking device in Bruce Wayne's skull when he operated on him. Superman destroyed it with his heat vision at the request of Batman. It was revealed that the Riddler was the real mastermind behind the whole plot, guiding Elliot all along.

Although Batman was unsure that Hush indeed was Thomas Elliot, he never got the chance to remove the bandages and see for himself.

Hush Returns

Hush resurfaced, and did so with a vengeance. He had been hiding in out in a swap awaiting his next move and making his new plans to get his revenge. These plans are found by several innocents who accidentally stumble upon Hush's hideout and are all quickly killed by Hush using an axe. Still determined to destroy Batman and not to let any other villains get in his way. Hush quickly carved out a niche for himself,  Hush first warns the Riddler that he is coming back by paying a man to visit Riddler in jail and read him the riddle "Whats orange and doesnt have many days to live?",  the Riddler desperate for help makes a bargain with the Joker to help him leave Gotham to which Joker agrees. When the Riddler escapes he is immideately hunted down and beaten within an inch of his life. The Riddler manages to escape by tossing himself off the building to which he meets Joker below. Hush warns Joker not to interfere but Joker simply laughs and orders his many thugs to severely beat Hush up. Thus causes Hush to rethink his plan and so he leaves for Star City.

Hush teams up with JLA nemesis Prometheus after saving him from Green Arrow, Hush throws a police office off a building so that Green Arrow is forced to save him giving Hush and Prometheus enough time to escape. Hush brings a seriously wounded Premetheus to his appartment and begins to operate on him, healing his wounds. In return Prometheus agrees to help Hush take care of Batman. The two return to Gotham City where they ambush Joker and his men just as they are about to take Riddler to a safehouse. Hush orders Prometheus to slaughter Jokers men while Hush severely beats Joker and after finishes off calling Joker nothing but "a bad joke". Before Hush can kill Joker,Batman arrives just in time to confront him. Hush reveals to Batman that he is truly Thomas Elliot and eveyrthing he had said on the bridge that night was true. Hush then makes a quick escape along with Prometheus. Soon after their alliance began to torment Bruce Wayne and with the aid of the new Clayface exploiting his shape-shifting abilities, he was even able to shed doubt on his true identity and apparently also had Alfred framed for murder. Alfreds name has since been cleared.  Hush even killed Poison Ivy in a fruitless attempt to recruit her help. Blaming Prometheus for being responsible for the murder of Poison Ivy their partnership ends.
 
The Joker eventually came back to Gotham along with an army of trained pigeons and retaliated. He captured Hush and kept him sedated for three weeks, and implanted a pacemaker into him, effectively gaining control of his heart and him. Hush turned to the one man he felt he could trust or rather, predict Bruce Wayne. Wayne helped Hush on the condition that he be treated in and confined to Arkham Asylum. Hush agreed, and escaped after he was told that the surgery was a success. Batman got to him before he could confront the Joker, and the two men debated over killing such evil criminals. Hush demanded he be allowed to kill Joker and Batman seemed to agree and began to leave, but then revealed the pacemaker was still in his body, and he'd was allowed to escape. At that point the Joker arrived, and Hush began begged Batman not to leave. The issue ended unresolved. It is unknown what decision Batman made, although Hush did return in the Man-Bat miniseries.

Batman R.IP (Heart of Hush)

Hush then reappeared, following Batman and Catwoman as they tracked down the criminal known as Doctor Aesop.  During Batman and Catwoman's battle wtih the Aesop's men, Hush appeared in the warehouse and shot Aesop twice, killing him. He then told Bruce that the warehouse would not be the battlefield for their final confrontation and quoting, Aristotle, vanished through a window. Hush has surgically altered his face to look like Bruce Wayne's, planning to steal his identity.

Later, he fights with Catwoman.. He shows her his face, startling her, and steals her heart, leaving her on life support. He lures Batman to him, and they fight. Batman manages to save Catwoman. Hush goes to Wayne Manor, and finds the Batcave. Hush fights Batman again, and steals a helicopter. However, his facial bandages get caught in the propeller and he is presumed dead. Catwoman knows otherwise, and leaves him a video telling him that she had recovered, and that she had also stolen all his money. Hush, who is badly injured, is outraged.

Faces of Evil

Hush, now penniless, tries to commit suicide by jumping off a bridge. He is saved by two men who think he is Bruce Wayne. Hush realizes that while he may not be able to trick Batman's close friends about his identity, he can trick others. Hush begins to pretend to be Bruce, taking money from various Wayne owned enterprises. While in a foreign country he is captured by Catwoman. Catwoman tortures him, at one point using him as a 'punching bag for a rhino'. She then makes him run away as a decoy for the poachers they are traveling with. While he flees she releases all the animals. Hush is captured by Robin and Nightwing who had been posing as two poachers. They take him into custody. 

Harley Quinn 

Skills and Weapons

As Thomas Elliot he is a neurolist with a genius level intellect. He specializes in brain surgery, and is also a proficient plastic surgeon, having repaired the scar tissue on Two-Face. Elliot is a master strategist and manipulator, responsible for setting in motion a grand series of events aimed at killing Batman. Hush was also a skilled martial artist as he was able to hold his own against Batman. It also appears that Hush is an expert marksman. Hush carries twin.45 calber pistols

 
Hush is an unlockable Character Bio in the game Batman: Arkham Asylum