| Name
|
Information
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| Abattoir
|
Arnold Etchison was convinced that his family was evil. He killed them, and believed he had absorbed some of their life force at their demise. Seemingly drawing strength from each death, he tended to go for overkill in his murders which followed a ritual of skinning them.
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| Absinthe
|
Revealed as an Arkham patient in Batwoman (vol.2) #29-30.
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| Adalyn Stern
|
A sweet, innocent girl Adalyn has always seen Batman since that day when Batman beat her father to a pulp. She has carried those feelings of fear and resentment with her ever since. As a means of revenge, Adalyn donned the mantle of the Scarecrow and devised a plan to turn all of Neo-Gotham against Terry McGinnis.
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| Adam Bomb
|
Villainous bomber with burnt skin.
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| Albert Blume
|
Paranoid schizophrenic, former patient at Arkham Asylum.
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| Alberto Falcone
|
Supposedly a series of people who became the killer for different reasons.
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| Allegra Garcia
|
Brazilian Girl who has the ability to control the electromagnetic spectrum.
|
| Alyce Sinner
|
Formerly Jeremiah Arkham's assistant, Alyce Sinner is now Director of Arkham Asylum. She claims to be the only survivor of a cult suicide, but in reality murdered her parents fellow cult members. Sinner wears hair ribbons to represent the 7 Deadly Sins.
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| Amadeus Arkham
|
Amadeus Arkham created the infamous Arkham Asylum out of his family estate, and eventually became an inmate himself.
|
| Ambush Bug
|
Revealed as a Arkham Patient in Action Comics #560.
|
| Amygdala
|
Aaron Helzinger was a giant of a man prone to fits of homicidal rage. Due to these violent episodes, he was remanded to the care of Arkham Asylum. A surgeon at Arkham removed Helzinger's amygdala cluster in the hopes of curing the psychotic episodes. This procedure yielded unexpected results however as Amygdala became exceedingly angry in opposition to what the surgery was supposed to achieve.
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| Anarky
|
Revealed as an Arkham Patient in Detective Comics #964.
|
| Bad Cop
|
Geoff Shancoe was a good cop and a newlywed working for the Gotham Police Department when he was involved with charging the Joker after his first apprehension and arrest. The Joker, abusing his right to a phone call, phoned Geoff's wife and convinced her to kill herself. Following the suicide of his wife, Geoff turned back to alcohol and watched as the Joker spread more mayhem and murder from incarceration. Geoff eventually decided to take matters into his own hands. Shooting both Jim Gordon and his own partner, Geoff then intercepted the Joker's prison transport. Instead of killing Joker, he was using the entire thing as bait to draw out Batman - his true target - for having delivered the Joker to the police in the first place. Geoff's attempt to hang Batman failed and he was sentenced to imprisonment in Arkham Asylum.
|
| Bane
|
Revealed as an Arkham Asylum patient.
|
| Barnes
|
A psychotic killer and an inmate of Arkham Asylum.
|
| Betty
|
A serial-killer and inmate of Arkham Asylum with an obsession for knitting.
|
| Big Top
|
Morbidly obese bearded woman in tutu.
|
| Black Manta
|
A notorious pirate and assassin, Black Manta is one of the most ruthless and feared supervillains on Earth, and Aquaman's mortal enemy.
|
| Black Mask
|
Roman Sionis, AKA the Black Mask, is a ruthless Gotham City-based mob boss and leader of the False Face Society. At various times he has been the supreme leader of the Gotham criminal underworld. Possessing an extreme hatred for Bruce Wayne, and a sadistic talent for torturing his victims, makes the Black Mask one of Batman's most dangerous adversaries.
|
| Black Spider
|
Revealed as an Arkham Asylum inmate.
|
| Blackbird
|
Revealed as an Arkham Asylum inmate.
|
| Bleak Michael
|
An acid controlling member of Knightfall's the Disgraced.
|
| Blockbuster
|
Mark Desmond was a chemist whose experiments intending to increase his strength turned him into a mindless monster.
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| Bob Overdog
|
Gotham City junkie that made contact with Bat-Mite.
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| Bonebreaker
|
Knightfall's main bodyguard, and super-strong member of the Disgraced.
|
| Bradbury
|
An Arkham inmate, believed that the ghost of Benjamin Franklin drive him to his crimes.
|
| Brainwave Jr.
|
Henry King Jr. is the son of the 1940's criminal mentalist Brain Wave and Merry the Gimmick Girl. Henry would be a founding member of the first Infinity Inc., but eventually went mad due to his powers.
|
| Bronze Tiger
|
Ben Turner, the Bronze Tiger, is one of the greatest martial artists in the DC Universe. He is often associated with the Suicide Squad, and is good friends with Richard Dragon, and he's a member of the League of Assassins and has something of a frenemy relationship with Deathstroke.
|
| Calamity
|
Olive Silverlock's troubled mother, who is locked away in Arkham Manor while in a coma.
|
| Calendar Man
|
Calendar Man is fascinated by dates and calendars - even his real name is a pun on the Julian and Gregorian calendars. As Julia got older, his mind became more demented and over time he gave certain holidays a newfound but twisted reverence. In late November, Julian dropped in unannounced during a Thanksgiving dinner. Julian was hiding from the cops after he had committed a robbery. He proceeded by killing each family member then he helped himself to some stuffing, turkey and pumpkin pie. From that day forward, Julian would always feel overwhelmed with a sense of loneliness because he will never know what a true family Thanksgiving is. After Thanksgiving, Julian was eventually captured by the Batman.
|
| Carnage
|
Psychotic killer Cletus Kasady, also known as Carnage was revealed to be in Arkham Asylum.
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| Cary Rinaldi
|
Cary Rinaldi also known as the Carrier is a potent carrier of a toxic fast-acting virus. He spreads a fatal disease wherever he goes.
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| Cassidy
|
Arkham Asylum inmate who was brought into the Joker's game who believed himself to be a discharged recruit to the secret army of Batmen in Gotham City.
|
| Catman
|
Tom Blake was a big game hunter who specialized in stalking and trapping leopards, tigers, and other members of the cat family. He made his money by selling certain cats to zoos and circuses around the world, but because Blake was an inveterate gambler, he threw away his fortune several times over. Blake eventually grew tired of the profit and loss cycle into which his life had fallen and, returning home to Gotham City, decided to turn his back on jungle expeditions in favour of urban adventure. Toying briefly with the notion of becoming a crimefighter, he instead decided to indulge in a life of crime instead. He did this for two reasons: first, it would make it far easier to regain his lost fortune; and second, it would allow him to pit his vast hunting skills and sharp wits against Gotham's Dark Knight Defender - the Batman. Also, it allowed him to maintain the life of danger and excitement he had come to love. To that end, taking his cue from his life-long obsession with cats, Blake became the Cat-Man, a criminal who, like Catwoman, became known for his cat-oriented crimes.
|
| Catwoman
|
Catwoman, the costumed alias persona of Selina Kyle, is a cat burglar with an on-again, off-again, romantic relationship with Batman. She is shown as a woman who is very strong-willed, independent and morally dubious.
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