Athena: After falling in love with Helo and leaving her fellow Cylons behind, the Number Eight known as Sharon Valerii took the name Athena and became a trusted member of Galactica's crew.
Cylon Centurion: The new model of fearsome artificially-intelligent Centurions was created during the Cylons' forty-year exodus after the First Cylon War. More agile and independent than their preceding models, each Centurion sports deadly claws and savage projectile weapons.