Ultraman Jack
Ultraman Ken's Brother
Human Host/Form: None
Height: TBA
Weight: TBA
Age: Unknown (Older than Father of Ultra)
Home world: Land of Light
Voice actor(s): N/A - Manga Character
Suit actor(s): N/A - Manga Character
First Appearance: Ultra Brothers Story
Last Appearance: N/A
Number of Appearances: 1 - Story
Race: Ultra
Status: Deceased
Family: Father of Ultra (Younger Brother)
Mother of Ultra (Sister-in-Law)
Ultraman Taro (Nephew)
Affiliation: Space Garrison (Formerly)
'New' Space Garrison (Leader)

Ultraman Jack (ウルトラマンジャック Urutoraman Jakku) is the villainous older brother of Father of Ultra, who was envious that his brother was picked over him for the title of the Space Garrison's Great Commander (大隊長 Dai Taichō), a position given by Ultraman King. In retaliation, he started his own "New Space Garrison" and made himself its dictator, with the designation to eradicate the universe from all beings he considered to be villains, including anyone who he considered hostile towards himself. He only appeared in the 1979 Tetsuji Kataoka manga Ultra Brothers Story.[1]


  • This Jack is different from Ultraman Jack, as he was still known as "New Man" at the time of this manga, while this Jack is Father of Ultra's older brother.
  • Due to being envious of Father of Ultra being the Great Commander of the Space Garrison (a concept that may have been reused for Ultraman Belial), he established a New Space Garrison and declared himself the New Commander.
  • His renegade faction was eventually squelched, and he would be killed by Ultraseven.


  • Jack bears a head crest similar to Ultraman Ace.[2]
  • While his name was used for "New Ultraman" years after his debut, there is no relevance between the two.[3]