The Graygls were a water-breathing species believed by some scientists to be indigenous to Danalbeth. Due to a natural disaster, a benevolent species (possibly the Celestials) relocated them to Iskalon where they became part of the Iskalonian school. In physical appearance, the Graygls had round fleshy heads, distinguished by red eyes, flaring nostrils, and a wide mouth filled with sharp teeth. Although appearing fierce, the Graygls were among the gentlest, most hospitable of the Iskalonians, going out of their way to help others. Nonetheless, their appearance allowed them to intimidate Iskalon's predators, the chiaki.