Selina Kyle, also known as Catwoman, is a jewel thief from Gotham City and one of Batman's most-well known enemies. An orphan who learned to survive on Gotham's streets, Selina took to thievery to survive... but determined to do it in style, she learned martial arts and trained extensively to perfect her skills in cat burglary. Her criminal activities are often tempered by a reluctant altruism, making her an inconstant villain and occasional ally to Batman. She regularly eludes capture by the Dark Knight and maintains a complicated relationship that frequently fluctuates between flirtatious to romantic.