Monsters - Hath

Hath Soldier

Yet another misunderstood monster from Doctor Who.  Seems as though us humans are so damn quick to identify something as being threatening..sheesh...

wiki says:

The Hath are aliens that appear as tall, roughly humanoid creatures with fish-like heads, who can breathe in air via the employment of apparatus fitted to their faces that incorporates a canister of green liquid. They are intelligent, emotional creatures – one formed a friendship with Martha Jones, and saved her life at the cost of its own. They seem sentient and while they do not speak a language intelligible to humans, the two races planned to colonize the planet Messaline together. However, they later turned on each other – before their eventual reconciliation, thanks to the Doctor's intervention.
The Monster Files feature states that the Hath joined and assisted early human space colonisation.
The Hath returned for an appearance in the second part of The End of Time, where they are seen in an alien bar, and they are seen briefly in "The Eleventh Hour" in a clip illustrating the Doctor's role as protector of the Earth, suggesting that they have visited the planet at some point prior to 2010.