The Tigellans are light-haired humanoids from Tigella, first shown in Meglos.
The Tigellans lived underneath the surface of the Tigella due to the dangerous plant life on the planet. Their society is split into two classes. The Savants were the logical scientists of the Tigellans who ran the planet and wanted to study the Dodecahedron. The Dions were the religious Tigellans who worshipped Ti the Dodecahedron which is believed to be a holy object.