Marinda was a human member of the Knights of Ren, a dark side organization led by the Force-sensitive Ren. During the time of the Galactic Empire, Marinda and the other Knights of Ren became the allies of Crimson Dawn, a criminal syndicate under the control of Lady Qi'ra. The Knights played a part in Qi'ra's plot to destroy the Sith Darth Sidious and Darth Vader, during which Qi'ra tasked them with stealing an item from Fortress Vader.