|Death||Killed by a U-87 Cyber Combat Unit under control of Sam Adama|
|Portrayed by||Ben Cotton|
|Atreus is a Cylon|
|Atreus is a Final Five Cylon|
|Atreus is a Human/Cylon Hybrid|
|Atreus is an Original Series Cylon|
|Atreus in the separate continuity|
Some fifty-eight years before the Fall of the Twelve Colonies, Atreus and his men take reprisal on Sam Adama when Adama threatens their trade by shipping weapons to aid in the second Tauron Uprising. Atreus shoots and kills Adama's cohort, Demos, but allows Adama to live, confiscating his weapons and giving him a message for the Guatrau.