Seska

Joined the Obsidian Order, genetically altered to appear Bajoran, infiltrated the Maquis
Served under Chakotay, catapulted into the Delta Quadrant by the Caretaker in 2371
Escaped Voyager when she was discovered, joined the Kazon-Nistrim
Restored parts of her Cardassian physiology, became the consort of First Maje Culluh
Manipulated Culluh’s ambition for power while using her Starfleet, Maquis, & Cardassian tactical knowledge to help him
Orchestrated the theft of a transporter control module to lure Chakotay into a trap
The Kazon captured Voyager and marooned the crew on Hanon IV
Died when Pairs, Lon Suder & the Doctor retook the ship from the Kazon
Mortally wounded by a console overload during the battle and died reaching for her child