Aquarius, "The Water Bearer" (アクエリアス Akueriasu) is a Celestial Spirit that is one of the 12 Golden Zodiac Keys. Her key was owned by Lucy Heartfilia until she sacrificed it in order to summon the Celestial Spirit King.
Loke (ロキ Roki) is a member of Fairy Tail who was revealed to be the Celestial Spirit "Leo the Lion" (獅子宮 Shishikyū). He is the leader of the 12 Golden Zodiac Keys. His Key is currently owned by Lucy Heartfilia.