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 Batman Adventures" premiered on Kids' WB, airing alongside "" as part of an hour-long program titled "The New Batman/Superman Adventures". Cartoon Network aired reruns of "Batman: The Animated Series" from March 2, 1998, to 2004. On July 3, 2000, the series was added to Cartoon Network's Toonami line-up. In 2005, reruns of the series were aired on Cartoon Network's sister channel Boomerang. The series later began airing on Toon Disney's Jetix line-up on September 30, 2007, again alongside "Superman: The Animated Series" (despite Warner Bros. being one of Disney's biggest competitors). The show aired on Teletoon Retro (a Canadian broadcasting