Asajj Ventress began life as concept art by Dermot Power for a potential female Sith Lord during the development of Star Wars: Episode II Attack of the Clones (2002). When the character was abandoned in favor of Count Dooku, the female Sith warrior was repurposed as a "Separatist commander" for the Clone Wars spin-off material developed by Lucas Licensing in toys, comics and novels in 2003-2005.

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