Kate

Kate is an alien of the Third Galaxy. She uses a modified Ocular Disruptor to appear human.

Galaxy 2
Kate, originally an attendant of Admiral Petrine's private jet, is actually a spy of the Third Galaxy, who has murdered the real Kate, and now seeks to assassinate Petrine, Ambassador Melaia, and Ambassador Ben before they can begin their mission.

Kate manages to sabotage the plane, but is defeated in hand to hand combat and tranquilized by Petrine. Upon police investigation, it is revealed that Kate was an alien of the Third Galaxy.