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 Animated Series dialogue from the trailer.<ref name="BTAS/TDKR trailer">BTAS/TDKR trailer on The Hub, Web Video.</ref> "Batman: The Animated Series" has been consistently ranked as one of the greatest animated television shows ever made, as well as the most faithful Batman animated series to date. It has been critically and commercially acclaimed for its sophistication, mature writing, voice acting, orchestrated soundtrack, artistic ambition, and faithfulness to the source material. In its 1992 year-end issue, "Entertainment Weekly" ranked the series as one of the top television series of the year. In his reference book, "Batman: The Complete History", Les Daniels described "The Animated Series" as