Captain-Commander Draga-three was a Rhumon Republican military officer. After capturing Victoria Waterfield, he had a shock collar put on her and sent her to spy on the Imperials. The controls were later damaged, and he deactivated the collar.
He went with the Second Doctor, Jamie McCrimmon, Kristas, Kai Shallvar and Modeenus to deliver a bomb to the Animus. Once the Animus was defeated, Shallvar and Draga decided to free the Menoptera and make Vortis into neutral territory. (PROSE: Twilight of the Gods)