https://wiki.darkjedibrotherhood.com/view/Marick_Arconae#Deep_Cover_Alias:_Rick_Alstot

Nailed it

Alias Name: Koekie Donder

Physical Description: K’tana is a creature of ego and arrogance. Although she has the ability to change her face, she changes very little. Her tattoo’s fade away, her eyes become a light shade of violet and her teeth become pointed like that of a feral animal. Aside from those slight differences, she see’s no real point in hiding her face from those she feels she will end up killing in the end. Besides, everyone knows all Twi'leks look the same to most humanoids anyways.

Occupation & Skills: K’tana is a very proficient killer, dancer and entertainer. Most people seem to underestimate Twi’leks and K’tana uses that to her advantage, allowing her targets to think of her as nothing more than a pretty piece of flesh that they can command. Once they are certain of her obedience, or impressed by her skills, they usually find the woman smirking in their face with her blade through their throat.