- You may be looking for the Piscon.
Zeno was a planet inhabited by humanoids. The Gorgon came from Earth to Zeno and began turning the inhabitants to stone. The First Doctor, John and Gillian arrived on Zeno and defeated the creature. Afterwards, the few surviving natives came out of hiding and thanked the travellers for restoring their freedom. (COMIC: The Gaze of the Gorgon)