Kuo-toa

Kuo-toa, also known as gogglers and men-fish, are a fish-like race of amphibious monstrous humanoids from Dungeons & Dragons. These denizens of the Underdark have humanoid bodies and fish-like heads. Kuo-toa were once sane, but during the Illithids' rule over the world, they were captured by the thousands. They were simple humanoids that could not stand the psychic control exerted over them. As a side effect, they went insane.

Kuo-toa make many gods up to protect them from danger, The most notable is the deity Blibdoolpoolp. If enough Kuo-toa believe in the same god, their consciousness causes that deity to become a physical entity.

Kuo-toa are neutral-evil in alignment and their primary languages are Undercommon and Aquan, though they also speak their own unique language.