Ultraseven is the third Ultra-being to come to Planet Earth (first and only in the spin-offs). He came to the planet after being sent to map the Milky Way, but this planet caught his attention and arrived here, he took the appearance of a brave man and renamed himself as Dan Moroboshi, and joined the UG. Ultraseven defended Earth from countless alien invasions for an extended period of time, until he went back to the Land of Light after sustaining serious injuries and fatigue.

He later was revealed to have a son named Ultraman Zero, who became one of the most skilled Ultra Warriors from the Land of Light.

A soldier from the Land of Light in the Nebula M78, 340 was originally sent to map the Milky Way Galaxy, where he eventually visited a planet that interested him, our very own Earth. On his first visit to Earth, he saved the life of a young mountain climber named Jiro Satsuma, who had nearly fallen to his own death to save a fellow climber from sharing his fate.