The Drahvins are a humanoid warrior species which hail from the planet Drahva in Galaxy 4. Their society is rigidly matriarchal. Males are rarely seen, as they are treated as inferior beings and used only for reproduction.
Most of the Drahvins' military units are composed of cloned female soldiers, with limited intellect and which do little more than blindly obey commands from their superiors. As a race they are very xenophobic, and tremensously hostile towards other species, even pacifist ones like the Rills. Altruism and compassion are alien to them: they will often kill their wounded soldiers rather than treat them.
- Doctor Who Season 3 - Galaxy 4 (1965)