Siennv'en was a Twi'lek female from Ryloth who served as a commissioned officer of the 41st Civil Affairs Corps (Airborne), Imperial Army Strategic Operations Forces, Galactic Empire Special Operations Command. By the year of 130 ABY, in the last months of the Sith-Imperial War, according to the Imperial Special Forces's drastically-accelerated promotion rank, she would receive a promotion to the rank of Captain and would participate in Imperial military actions on Thyferra during the war's waning months.