Some of Arkham's prisoners

Originally, Arkham Asylum is used only to house genuinely insane patients having no connection to Batman, but over the course of the 1980s, a trend was established of having the majority of Batman's supervillain opponents end up at Arkham. Nearly all of Batman's enemies have spent some time in Arkham.

Arkham Asylum also features in other DC Universe publications. In Alan Moore's Swamp Thing, The Floronic Man is detained there, and in The Sandman by Neil Gaiman, Doctor Destiny escapes the asylum to wreak havoc on both the real and dream worlds. It has also been featured in varying capacities in a number of high profile DC miniseries events, such as Identity Crisis, Day of Vengeance, Countdown, and Crisis on Infinite Earths, among others.


  • Alberto Falcone
  • Bane
  • Black Mask
  • Blockbuster
  • Calendar Man
  • Clayface
  • Matt Hagen
  • Preston Payne
  • Sondra Fuller
  • Crazy Quilt
  • Deadshot (shipped from Blackgate)
  • Doctor Phosphorus
  • The Great White Shark
  • Harley Quinn
  • Hugo Strange
  • Jeremiah Arkham
  • The Joker
  • Killer Croc
  • Killer Moth
  • Lock-Up
  • Mad Hatter 
  • Magpie 
  • Maxie Zeus
  • Mr. Freeze
  • Music Meister
  • Victor Zsasz 
  • Poison Ivy
  • Professor Milo
  • Professor Pyg
  • Prometheus
  • Ra's al Ghul (committed as "Terry Gene Kase")
  • The Riddler
  • Scarecrow
  • Signalman 
  • Tally Man II 
  • Two-Face
  • Vanity
  • The Ventriloquist