Born Casval Rem Deikun, Char Aznable is also known as Edward Mass and the alias Quattro Bajeena. He is nicknamed the "Red Comet", due to the speed at which he destroyed five of Earth Federation's Magellan class battleships with his red Zaku at the Battle of Loum during the One Year War (which earned him a promotion of two ranks to Lieutenant Commander). He is the elder brother of Sayla Mass (Artesia Som Deikun), and the son of late Zeon Zum Deikun, the champion of sovereignty for the space colonies of Side 3, founder of the Republic of Zeon.