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"Well, what about Arkham Asylum, that house of horrors that you fund with your tax dollars, or Blackgate Prison, too violent for Jacob Kane, loving father of lunatic at large Alice of Wonderland?"
Black Mask[src]

Arkham Asylum for the Criminally Insane,[1] also known as Arkham Asylum or simply Arkham, is a mental asylum located in Gotham City.


After Jervis Tetch was defeated by Batman, he was sent to Arkham, where he is believed to have died.[2]

At some point, Batman killed the Joker, though most other individuals are unaware of this, instead believing that he was incarcerated in Arkham.[3]

Tim Teslow was sent to Arkham after breaking the neck of his referee in front of the whole Gotham stadium.[4]

J.J. Gordon was sent to Arkham after a experimental medication to cure his mental illness failed and he was left in a vegetative state.[5]

Nora Fries became a patient at Arkham after she awoke from a 20 years cryo-stasis caused by her husband. In 2018, Nora escaped during the Arkham breakout.[6]

When Alice was arrested, Sophie Moore kept her locked in their headquarters waiting for her to be transferred and imprisoned in Arkham. However, she eventually managed to flee.[7]

After Batwoman took her down, Crows Security brought Natalia Knight to be admitted to Arkham.[8]

Duela Dent was sent to Arkham after being arrested by GCPD.[9]

After Tommy Elliot and Margot were defeated by Batwoman, they were deemed insane and imprisoned in Arkham.[3]

Jonathan Cartwright was sent back to Arkham after attacking two nurses who worked there. After this, Alice became imprisoned in the asylum as well following an attempt to break him out alongside her sister Kate, who betrayed her and had her locked up. Soon afterward, Alice began plotting her revenge with Mouse.[10]

In one week, Alice managed to completely take over the asylum after having the warden M. Butler killed and replaced by Jonathan. She decided to remain in Arkham and rule as the "King and Queen of Arkham" while plotting her nefarious plans and wait until Gotham has completely forgotten about her, only then she would make her return and make sure no one would ever forget her or Mouse.[3]

During Alice's escape from Arkham, she released all the inmates as a distraction, and they spread across Gotham to cause chaos and wreak havoc (like Tim Teslow), while Arkham was left on fire.[4][11] Circe Sionis died in the fire, as she was trampled by the stampeding inmates.[12]

In 2020, Roger Hayden was a prisoner of Arkham; Team Flash researched about him for information on the Psycho Pirate mask.[13]

After losing their respective fight with the new Batwoman, Tommy Elliot and Victor Zsasz were taken back to Arkham.[14][15]

Roman Sionis told "his daughter" that she wore a mask because her face was burned in the fire of Arkham.[16] After Roman's identity as Black Mask was exposed to the public, he was arrested and sent to Arkham for his crimes.

After saving Kate at Gotham River, Alice was find by the GCPD and sent to Arkham, where she was visited by Ryan Wilder[17] and Mary Hamilton. Later, Ryan released Alice to help her stop the new Mad Hatter. After she stabbed him, he was arrested but Alice too. Although, she was temporaryly released of Arkham to help Renee Montoya to use her knowledge of criminals to find the lost Batman Trophies.[18]

The new Killer Croc was sent to Arkham after being arrested by GCPD and defeated by Batwoman.[19]

Marquis Jet used his influence to drop several patients from Arkham to use them as henchmen, including Victor Zsasz, but several were defeated by Batwoman and arrested again.[15]

Known employees

Current employees

Former employees

  • M. Butler (head psychiatrist and warden; deceased)

Known patients

Current patients

Former patients



Season 1

Season 2

Season 3

The Flash

Season 7




Promotional images


Season 3

Behind the scenes

  • In the DC comics, Arkham Asylum is where those of Batman's foes considered to be legally insane are incarcerated.