Arkham Asylum's patients are comprised of Two-Face.
 The asylum serves as a psychiatric hospital for the Gotham City area, housing patients who are criminally insane, as well as select prisoners with unusual medical requirements that are beyond a conventional prison's ability to accommodate
 "Eye of the Beholder" also established Two-Face as a second personality state of Harvey Dent's dissociative identity disorder which resulted from his trauma; a psychiatrist in the story describes his condition as having "two personalities", with Dent having managed to "sublimate the second, anti-social one since he was a teenager"

