Savage Opress: Was a Dathomirian Zabrak Nightbrother who became a Sith Lord alongside his younger brother, Darth Maul, during the Clone Wars. Originally a tribal leader on Dathomir, Opress was handpicked by the Nightsister Asajj Ventress to become her 'mate' and servant following her grueling tests of Selection, as part of her bid for revenge on her former Master, the Sith Lord Count Dooku.
Star Wars villains... Or protagonists? Who's to say. The brilliant thing about all these "bad" guys is their touching back stories. If I had been through what Grievous had I would hate the Jedi too. Think about it, it's all perception. L