The following article comprises a list of the characters appearing in the anime Saint Seiya Omega , a spinoff of Masami Kurumada's manga and anime Saint Seiya .
The characters are organized according to the factions they belong to, or as secondary characters that are affiliated to none.
The Steel Saints (鋼鉄聖闘士, Suchīru Seinto) are Mitsumasa Kido's technologically enhanced special backup unit for Athena's Saints, created decades ago. The Steel Saints wear specially developed mechanical armors, known as the Steel Cloths (鋼鉄聖衣, Suchīru Kurosu), which do not require mastery over Cosmo to be worn. Most Steel Saints are equal in power to a Quaternary Pallasite, thus helping Athena's Saints against their overwhelming numbers. The current generation of Steel Saints Cloths are based on those of the three Original Steel Saints (初代鋼鉄聖闘士, Orijinaru Suchīru Seinto).
The Martians (火星士, Māshian), or Mars Knights, are Mars' warriors. Each wears an armor themed after an insect.
Mars' Four Heavenly Kings (マルス四天王, Marusu Shitennō): are the collective of the four most powerful warriors of Mars' army. Originally defeated by Seiya and his companions, they are brought back to life by Pisces Amor to help him deal with Koga and his friends.