Batman an occasional ally and romantic interest), the Penguin, Ra's al Ghul, Two-Face, the Riddler, the Scarecrow, Mr. Freeze, Poison Ivy, Harley Quinn, Bane, Clayface, and Killer Croc among others. Many of Batman's adversaries are often psychiatric patients at Arkham Asylum. Batman's butler, Alfred Pennyworth, first appeared in "Batman" #16 (1943). He serves as Bruce Wayne's loyal father figure and is one of the few persons to know his secret identity. Alfred raised Bruce after his parents' death and knows him on a very personal level. He is sometimes portrayed as a sidekick to Batman and the only other resident of
Batman: The Long Halloween that Bruce is loyal to the Falcones. Bruce's butler Alfred testifies that Thomas' report never came to light due to police corruption, embarrassing the prosecution and declaring Bruce innocent. Maroni, having been captured earlier, offers to testify against Falcone. During the trial, he throws a vial of acid, given to him by Vernon while in transit to the courtroom, at Dent, disfiguring half of Dent's face. Dent is rushed to a hospital, but stabs a doctor and escapes to the sewers, calming Solomon Grundy when he encounters him. Gordon deduces Dent may be Holiday, but Batman refuses to believe it