Ganthet Gurondil is a Green-Lantern who was over 7 billion years old by the founding of the corps. He is the founder of the Blue-Lantern Corps. He is a Oan who is said to have been born at the dawn of the universe.
He is an Oan, and has the standard physical features of one, but is individualized compared to other Oans. He has blue skin, has green-blue eyes, and white hair tied into a long ponytail. He was short, like most Oans, but is now about 6 feet tall.