Ultraman King

(ウルトラマンキング, Urutoraman Kingu) is a fictional character and is one of the Legendary heroes of the Ultraman Universe.

He is considered to be and respected as the "God" or Elder of all Ultra heroes. Despite the name, he is not the king of the Land of Light. He is supposedly all powerful and undefeatable, but lives on his own on the King Planet. Before Leo encountered him, no Ultraman had ever seen him in the flesh. 

He is extremely powerful in the appearances he has made, showing able to bring Ultraman Leo back to life after he'd been sawed to pieces by Commander Black without any effort and in the latest movie, showed the power to not only defeat Ultraman Belial with ease but form an entire moon around him.

His age was revealed to be 300,000 years in the 2003 movie New Century Ultraman Legend 2003: King's Jubilee (Urutoraman Densetsu: THE KING'S JUBILEE), but the chronological order of this work is unclear.

In manga, particularly Ultraman: Super Fighter Legend, he has been depicted as a legend who has defeated many monsters on his own.

Rumours about King state that he is Zoffy's maternal grandfather or even Yullian's father. King not being the actual king of the Land of Light, however, this has been disproved (Yullian is the Land of Light's princess.)

In Mega Monster Battle: Ultra Galaxy Legend The Movie its revealed that, in ancient times, he singlehandedly defeated Ultraman Belial and formed the Land of Light's moon around him to imprison him In the Space Prison.