Ultraman Ginga (ウルトラマンギンガ Urutoraman Ginga?) is an Ultraman from an unknown future who was once one entity with Dark Lugiel, whom the latter separated from prior to the Dark Spark War. After the war, he was trapped in Spark Doll form. The doll and the Ginga Spark made their way to Earth and into the hands of Hikaru Raido, who uses the two to transform into Ultraman Ginga and battle users of Dark Spark Dolls. When he returned to space, he left his spark in Hikaru's possession so that he could come to the aid of Earth, even if he was far away in the galaxy.