No supervillain prison in comics has captivated readers ... swallowing each inhabitant whole every time. Joker invited Batman ...

Arkham Asylum is a terrible place ... The Joker #7 is available now from DC Comics! The Joker is a psychopathic criminal mastermind with a warped sense of humor. Initially introduced as a ...

In the comics, Harleen Quinzel is a psychiatrist the Joker falls in love with while he's institutionalized at Arkham Asylum, and she becomes his partner in crime. The original movie, you'll recall ...