Eleena Daru was a female Rutian Twi’lek, and the lover of the Sith Lord Darth Malgus during the Great Galactic War. She was originally aslave in the slave pens on Geonosis, until saved by Darth Malgus. She participated in the Sacking of Coruscant in 3653 BBY. Other than Shae Vizla who entered stealthily, she was Darth Malgus’s only backup prior to the shuttle carrying several Sith crashing through the Jedi Temple’s entrance. During the battle, she was incapacitated when Jedi Master Ven Zallow used the Force to push her into a pillar.

After she recovered from her wounds, Malgus ordered her to round up a list of people and equipment he had made, as much as she could possibly find, and to bring it back to his ship Valor. However, at the Liston Spaceport on Coruscant she was attacked by Aryn Leneer, a Jedi Knight. She was spared by Leneer, and after an intense battle with Malgus, was let go because she had spared Eleena. Malgus, after exchanging with her some passionate and emotional words, killed Eleena, because she was his greatest weakness, and could be used against him. However, this death tore up Darth Malgus emotionally, to a point where he was constantly reminded of Eleena, which fed his anger. In death, she was his greatest strength.

Biographical information
Died 3653 BBY, Coruscant
Physical description
Species Rutian Twi’lek
Gender Female
Eye color Green
Skin color Blue
Chronological and political information
Era(s) Old Republic era
Affiliation Darth Malgus

From Wookipedia

Character design by Sze Jones