Aurra Sing

 Aurra Sing, also known as Nashtah, was once a female Jedi Padawan, but following a series of tragedies and misfortunes, she left the Jedi Order to become a vicious bounty hunter specializing in Jedi and political assassinations. She even became an associate in the posse of Cad Bane, a brief mentor of the orphaned Boba Fett, a commander for the Confederacy of Independent Systems during the Clone Wars, and later an Imperial Agent under the Sith Lord Darth Vader.

During the Second Galactic Civil War, Sing was hired to kill Queen Mother Tenel Ka Djo and Chume'da Allana, only to be beaten by the latter.

Sing's career spanned over seven decades, from at least 36 BBY to 40 ABY.