Female Changeling

The Female Changeling was one of the Founders of the Dominion, and the primary representative of the Great Link in their dealings with Odo and with the Cardassian leadership during their war with the Federation.

During the war, the Female Changeling visited the mining planet of Bleak Prime, where the administrating Vorta were exhibiting a peculiar degree of free will. She was ultimately forced to kill all the Vorta on the planet, and recommend the mining facilities be abandoned. (DS9 short story: "Change of Heart")

At the conclusion of the Dominion War, the Female Changeling signed a peace treaty, and turned herself over to Federation authorities as a prisoner. (DS9 episode: "What You Leave Behind") She was incarcerated at Ananke Alpha, a maximum security Federation prison. (DS9 novel: The Dominion: Olympus Descending)