Ultraman Wiki
Ultraman Wiki

Alien Kadder (カッダー星人 Kaddā Seijin) was a small time criminal that appeared in ULTRAMAN.



A small time crook, the alien broke into a warehouse and killed the guard, his action drew the attention of the SSSP who mobilized an extermination team to capture or destroy him. While he tried to snipe them from above, his tactic failed and he was forced to flee from their return fire, only to run into Shinjiro who took him down. The alien begged for his life and Hayata was merciful leaving him to be taken into custody.


  • While the species is permitted to travel throughout the Alliance, they are hunters by nature. Seemingly as a result of this, many of them turn to crime.
    • Alien Kadder's spike weapons are a replacement for the spears his people ordinarily use.
  • So far Alien Kadder was Shinjiro's shortest fight in the series.
  • Alien Kadder is possibly the first major alien in the series, to not be based off a prior alien/kaiju from the original series.
  • The character was replaced by Alien Robuton in the anime adaptation.


  • Height: Unknown
  • Weight: Unknown
  • Origin: Planet Kadder
Powers and Weapons
  • Spike Launcher: Alien Kadder was armed with an arm mounted weapon that fired spikes strong enough to puncture concrete.
  • Endurance: Alien Kadder survived being punched through a floor by Shinjiro. Other than that he does not appear to posses any super human abilities.



ULTRAMAN Manga and Anime Characters
Ultramen Ultraman | Shin Hayata | Shinjiro Hayata | Dan Moroboshi | Seiji Hokuto | Kotaro Higashi | Jack | Leo Brothers | Daigo
SSSP Dan Moroboshi | Mitsuhiro Ide | Edo | Jack | Red | Akiko Fuji | Seiji Hokuto | Kotaro Higashi | Windam | Leo Brothers
Secondary Characters Yosuke Endo | Kurata | Rena Sayama | Shiraishi | Pigmon's Friends | Ultraman | Dave
Star Cluster Alliance Edo | Ambassador Mephisto | Agent Adad | Alien Awazo | Leo Brothers | Bioweapon Nova | Black Directive | Alien Valky
Aliens Bemular | Edo | Alien Adacic | Alien Igaru | Red | Black King | Alien Kadder | Alien Robuton | Alien Bris | Agent Adad | Yapool | Ambassador Mephisto | Biological Weapons | Yuko Minami | Ace Killer Squad | Alien Awazo | Alien Pedan | Rei | Alien Druz | Four-Armed Alien | Gravity Alien | Sam | Leo Brothers | Alien Valky | Bioweapon Nova
Ace Killer Squad Ace Killer | Alien Nepenthes | Alien Woovelve
Star of Darkness Alien Pedan | Rei | Alien Druz | Golden Fortress | Four-Armed Alien | Gravity Alien | Alien Bado
Anime Only Shiraishi | Black King | Alien Robuton