Water Hags were humanoid in basic appearance. Their skin was emaciated and the colour of mud and their eyes were yellow with black slits for pupils. They had extremely wide mouths filled with sharp teeth, capable of easily biting the head off a dog. They had talons "as hard as iron" instead of fingernails, which were sharp enough to slice someone in half and even carve out solid rock. This killing method was a characteristic marker of a Water Hag killing. Despite their savage attitude, they were intelligent as (and possibly even more than) a human and the ones led by Sally Blackteeth were able to navigate the rift through unknown means. Water Hags weren't entirely animals, also having vegetable traits (giving them weed-like hair and bark-like skin).