|Official name:||Arkham Asylum for the Criminally Insane|
|Created by:||Dr. Hugo Strange|
|First Appearance:||The Batman|
|Star System:||Solar system|
Arkham Asylum is the home for the criminally insane of Gotham City where it is hoped they will become rehabilitated and allowed back into society. The Asylum is filled with a colourful band of psychopaths, including the likes of The Joker, The Penguin, Riddler, The Ventriloquist, and many others.
The head of the Asylum is Professor Hugo Strange, a man known for using most unorthodox methods in hopes of 'helping' his patients. Despite the fact The Batman has apprehended several of Arkhams' occupants on more than one occasion; Strange believes that there is a place in Arkham for the Dark Knight.
- The Riddler
- Mr. Freeze
- The Ventriloquist
- Clayface II
- Hugo Strange
- Black Mask
- Poison Ivy
- Killer Croc
- Gearhead, Bane, Poison Ivy and Killer Croc are confirmed inmates in The Batman Strikes! Issue #39.