Hippopotamus guard
From Tardis Wiki, the free Doctor Who reference
The Hippopotamus guards were a species who lived on New Earth.
On the last day of Novice Hame's life, two Hippopotamus guards watched over her bower to ensure visitors did not cause disruption and paid their due respect appropriately. (WC: The Secret of Novice Hame)
They were armed with spears and wore uniforms of bronze and rope, which kept them standing even as they slept. (WC: The Secret of Novice Hame)
