The largos are an aquatic race from the deep oceans of the far north and the Unending Ocean, coexisting with the native quaggan in both locations. They have recently appeared in Tyria after fleeing unknown "horrors" in their homelands. They rarely interact with other races, preferring to remain mysterious.
Largos are humanoids with pale blue skin, long ears, and, those seen within the game, have white hair. They have wing-like appendages that attach to the base of their neck which are used for swimming. These "wings" have colorful designs and bear semblance to butterfly wings. They are always seen with a mask on, and their voices sound impaired by a type of breather. They are capable of becoming invisible as they hunt their prey or scout their area.
Since the largos do not openly share information about their race, culture, or practices, not much is known about them with any certainty. Those seen within the game work alone, use dual swords on land, and spears below the water. These largos are also trained to kill silently and view assassination as a way of life, not just as a profession. Their status within society is determined by their proficiency in combat — failure to kill a designated target is a great insult to their personal and communal honor.
The younger generations are raised through apprenticeship, and each master seems to have only one student.
They also have strong values of obligation; when there is a debt of any sort, the largos is tied to the other party until neither owes the other, regardless of who incurred the original debt.
The largos are ruled by "great Houses," of which the only one mentioned in-game is the Tethyos Houses. These houses have an agreed-upon a set of principles that everyone follows, known as the "Tethyos Compact" or sometimes the "Concordat of the Tethyos Houses." The agreement covers: the importance of repaying debts, of behaving with honor and without mercy, and the phrase, "track it; kill it; and bring proof."
- Apprentice Yius
- Fahd al'Eshadhi
- Master Sdias
- Sayeh al'Rajihd
- Unseen Hunter
- Urrahn The Hunter
- Veteran Azzan
- Veteran Largos Assassin
 Concept art
Concept art by Kekai Kotaki.