Although originally introduced as an opponent for Batman, Catwoman's status as hero or villain is ambiguous; she has her own moral code (she abhors killing) and has occasionally teamed up with Batman against greater threats.
She is often considered a potential romantic interest for Batman; in the 1970s DC Comics even ran an ongoing series set in a parallel universe in which Catwoman and Batman had married and had a daughter who fought crime as the Huntress.
Her costume at first appearance in the comics (at which time she was known merely as 'The Cat') had a theatrically face-covering cat-mask. Later she wore a dress with a hood that came with ears, and still later a bodysuit with attached boots and either a domino or glasses-mask. In the 1960s, the bodysuit was green in color, which was typical of villains. In the 1990s, she usually wore a skintight purple bodysuit, before switching to a black leather outfit that recalls Michelle Pfeiffer's costume in Batman Returns (see illustration). In recent years, she has usually alternated between these two costumes.
Occasional attempts have been made to feature Catwoman in her own comic book series. The most recent such series, written by Ed Brubaker, was launched in 2001 and as of 2005 is still running to great acclaim.

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