Also known as: ウルトラマンサーガ(キャラクター), サーガ(ウルトラマン), ウルトラマンサーガ
The titular Ultra of Ultraman Saga (Movie). His human hosts are Taiga Nozomu, Asuka Shin (Ultraman Dyna) and Haruno Musashi.
He is actually a fusion of Ultraman Zero, Ultraman Dyna, and Ultraman Cosmos.