Ultraman Wiki

"These may be instant branches, but getting hit by them hurts just like the real ones do. You're about to die, kid, and I want you to know just who you're messing with!"

―Alien Nepenthes, to Shinjiro.

Alien Nepenthes (ネペンテス星人 Nepentesu Seijin) is a member of the Ace Killer Squad.



NOTE: Due to there being several differences between the manga and anime adaptation, the History section has been split into two tabs.


A race with tissue similar to that of plants. The individual who joined the Ace Killer Squad, was highly loyal to his leader and served as the group's strategist.

During the fight with the SSSP Ultramen and Seiji Hokuto, when Ace Killer was killed, he attempted to avenge his leader, only to be stopped by and killed by Shinjiro via his Spacium Beam.


Alien Nepenthes was one of Ace Killer's men. He was first seen along with his boss attacking an oil rig in search of Yuko Minami, but they failed to find her. Always Stay the Way You Are Nepenthes appears with his boss after a trap they put at the mansion sets off, and binds Shinjiro and Moroboshi using his vines. Ace Killer Seiji sets them free, and Shinjiro fights Nepenthes. He is soon joined by Moroboshi after he deals with some henchmen, but they are defeated and bound once again. Seeing Seiji get so injured enrages Shinjiro, who releases the Limiter under his own power, and kills Nepenthes using an Ultra Slash. The Real Ultraman


  • While his group are based off the Terrible-Monster, Nepenthes came from a fan contest in Japan to design a new alien.
  • His species prefers tropical environments.
  • His species is so plantlike that his presence causes elevated levels of oxygen in the immediate area.


Powers and Weapons
  • Tendrils: Nepenthes can shoot tendrils out of his back. They are strong enough to grab, hold and crucify the SSSP Ultramen. The tendrils have nerves as damage to them can hurt him.
  • Intelligence: Nepenthes knows and can speak approximately 5,000 languages. (Manga only)


ULTRAMAN Manga and Anime Characters
Ultramen Ultraman | Shin Hayata (Anime) | Shinjiro Hayata (Anime) | Dan Moroboshi (Anime) | Seiji Hokuto (Anime) | Kotaro Higashi (Anime) | Jack (Anime) | Leo Brothers | Rena Sayama (Anime) | Daigo | Jiro Satsuma
SSSP Mitsuhiro Ide | Edo | Red | Akiko Fuji | Windom
Secondary Characters Bemular (Anime) | Agent Adad (Anime) | Yosuke Endo | Kurata | Shiraishi | Pigmon's Friends | Yapool | Dave | Izumi | Shirou Maki
Star Cluster Alliance Ambassador Mephisto | Alien Awazo | Ubarazu | Alien Valky | Alien Zarab
Aliens/Kaiju Alien Adacic | Alien Igaru | Black King | Alien Kadder | Alien Robuton | Alien Bris | Biological Weapons | Yuko Minami | Alien Awazo | Alien Druz | Sam | Bioweapon Nova | Black King | Alien Magellan Maya
Ace Killer Squad Ace Killer | Alien Nepenthes | Alien Woovelve
Star of Darkness Alien Pedan/Pedant | Rei | Alien Druz | Golden Fortress | Alien Bell/Lleb | Alien Llubihc | Alien Bado | Alien Dealer | Alien Wadoran
Anime Only Shiraishi | Alien Robuton | Alien Pitt | Izumi | Mochigon | Maaya | Esrun
ULTRAMAN: BE ULTRA-exclusive Aliens Alien Mukishibara | Alien Ruboia | Alien Alteric | Alien Exbes | Irindo | Alien Guinpe

Episode Tiga
Alien Ruboia | Zoiger | Gatanothor

Episode Zero
Alien Mukishibara | Iwatesujo | Legionoid | Alien Magellan Maya | Alien Togarame | Alien Exbes | Alien Guinpe

Special Edition
Pedoleon | Magnia | Darkgone | Alien Magellan Maya | Mecha Telesdon II

8U Arc
Darkgone | Hotarunga | Gilanbo | Lethe | Grand King | Space Moths | King Kappa