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[X-23] was originally created by writer Craig Kyle for the X-Men: Evolution television series before debuting in the NYX comic series in 2004. […] The characterization went for the opposite of Wolverine, where instead of a man “older than we know” with no memory of his past and the life that he lost, X-23 was a young girl “shackled to the murders she’s committed” whose entire life revolved around the project that made her a killer. Kyle added that the character is “Pinocchio for Marvel Comics, she’s a samurai sword trying to become a real little girl.”