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The fictional supervillian and anti-hero from Marvel comics. She first appeared in Daredevil in January of 1981 (DD # 168). She has had her own series of comics, appeared in various crossovers, and guest appeared in several Marvel comics.
In 2003, Elektra appeared in the Daredevil movie. Character was played by Jennifer Garner. Later, she reappeared in her own self titled film, again played by Jennifer Garner.