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
Heart of Ice (Batman: The Animated Series) Heart of Ice (Batman: The Animated Series) "Heart of Ice" is the third of the American animated television series "", first aired on September 7, 1992, written by Paul Dini, and directed by Bruce Timm. This episode features the first appearance in the series of Mr. Freeze. In the comics, Freeze first appeared in "Batman" #121 in February 1959, with this episode providing a complete overhaul of his character. The episode rocketed the series to fame, after it won an Emmy for Outstanding Writing in an Animated Program. Batman follows a strange trail of heists pulled at various GothCorp offices,