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Dubbilex is a genomorph, a G-Goblin created by Project Cadmus. When posing as the human mayor of Geranium City, he uses the name Dabney Donovan.[1]

Physical appearance

Dubbilex has the appearance of a tall, slender man with blue skin. His head is radically different from that of a human, most notably in the presence of horns and absence of a nose. He also has pointed, fin-like ears, and two ribbons of flesh, originating on his cheeks. He wears plain white hospital-like pants and a matching shirt.[4]


Early life

Dubbilex is a G-Goblin, bred to possess telekinetic powers, but he also possesses psychic/telepathic powers that he has kept hidden from Cadmus officials.[5] He appears to have some level of seniority in Cadmus.[4] Dubbilex felt that Superboy was the hope for the genomorphs. As a genomorph hero, Superboy could "blaze a trail" for all genomorphs to be free.[6]


Washington, D.C.
July 4, approx-14:00 EDT

Dubbilex started a fire in Cadmus's ground-level facility to attract attention to Cadmus. When Robin, Aqualad and Kid Flash arrived, he lured them into the underground labs by allowing Aqualad to see him entering an express elevator.[4][6] When Guardian investigated the presence of the three sidekicks, he tried (but failed) to have Guardian leave his G-Gnome behind. After the young heroes were captured, he telepathically woke them up so that they could converse with Superboy, then telepathically guided Superboy when the four of them were trying to escape.[4]

Washington, D.C.
July 5, 00:01 EDT

He finally revealed the part he played by stepping in to prevent the young heroes' capture by Guardian, the G-Gnomes and the other genomorphs at Cadmus. He stepped aside when Mark Desmond administered the Blockbuster formula to himself.

After Blockbuster's defeat, Dubbilex continued working for Guardian's "kinder, gentler Cadmus".[6] However, he would continue his plans to obtain freedom for all genomorphs. He did so by secreting them away to a secret city deep under Cadmus, Genomorph City.[5]

Washington, D.C.
November 25, post-11:28 EST

When Superboy returned to Cadmus looking for another super-clone, Dubbilex was at first convinced there was none. But when "Match" was found, Dubbilex was certain he had to be saved as well. From other genomorphs, he learned that Match was an older project that no human in Cadmus knew about. After Superboy was defeated in combat, Dubbilex telepathically overpowered Match and had him brought to Genomorph City.[5]

Genomorph City
November 25, 14:41 EST

Dubbilex welcomed Superboy into the sanctuary. However, Superboy's shield container contained a tracking chip, alerting Cadmus officials to the city location. Dubbilex's plans of autonomy were over.[5]

Washington, D.C.
January 1, post-00:00 EST

During the Light's raid on Cadmus, Dubbilex was shown lying on the ground, unconscious.[7]


Dubbilex and the Genomorphs were liberated from Cadmus by Superboy and his allies, and taken to a new land. Geranium City was build on that land, with Dubbilex serving as mayor under the name "Dabney Donovan", using his telepathy to disguise the city in the presence of outsiders.[1]


Geranium City
February 14, 20:16 CST

Superboy introduced Dabney Donovan to Forager as they arrived in Geranium City. Once the last outsider had left town, Dabney revealed his true self and took Superboy and Forager on a tour of the city. Later, in Dubbilex's office, Dubbilex explained the history of Geranium City to Forager, with some help from Kraig. Dubbilex was moved when Forager committed to publicly joining the Outsiders to help fight prejudice against those who are "different," and tried to convince Conner to publicly help the Genomorph cause as well.[1]

Geranium City
February 17, 11:04 CST

In Dubbilex's office, he, Kraig, Benny and Erin watched gleefully as Superboy revealed himself and his status as a Genomorph at a United Nations meeting.[8]


Dubbilex was among those considered as a possible Justice League reservist.[9]

Happy Harbor
September 16, post-16:16 EDT

Dubbilex attended Conner and M'gann's wedding.[3]

Powers and abilities

Telekinesis: When Dubbilex uses his telekinesis his eyes and horns glow light red. He was shown to be able to lift medium-sized objects but claimed that he was incapable of opening the door to Project Kr.[4]

Telepathy: Similar to when he uses his telekinesis, Dubbilex's horns glow when he uses his telepathy. His telepathic ability seems to be on par with the G-Gnomes.[6] Telepathy was not part of his design, and he kept it secret from his superiors.[5]


Background information

  • Dubbilex is a character created by Jack Kirby. By long-standing practice DC almost always gives creator credits for Kirby's characters similar to the creator credits listed for Superman, Batman, and Wonder Woman. His name is a reference to the double helix of DNA, as he is a lab-grown creature.
    • The fact that Dubbilex is responsible for Superboy's freedom may be a nod to the fact that for a very long period in the comics, Dubbilex had a close friendship with Superboy acting as a mentor and father-figure during the time that Superboy lived in Hawaii and at Project Cadmus. In the Young Justice comics, Dubbilex even attended the parent/teacher functions that Red Tornado held so as to keep the adults appraised of the team's wellbeing and behavior.
  • While acting as mayor of Geranium City, Dubbilex uses the alias Dabney Donovan. In the comics, Donovan is a mad scientist working for Cadmus. He's antagonistic towards Superman as he does not believe in ethical restrictions on scientific experiments.
  • This is his first animated appearance.


  1. 1.0 1.1 1.2 1.3 Weisman, Greg (writer) & Berkeley, Christopher (director) (August 27, 2019). "Overwhelmed". Young Justice. Season 3. Episode 25. DC Universe.
  2. Weisman, Greg (2012-08-31). Question #15585. Ask Greg. Retrieved 2012-08-31.
  3. 3.0 3.1 Weisman, Greg (writer) & Heuck, Vinton (director) (June 9, 2022). "Death and Rebirth". Young Justice. Season 4. Episode 26. HBO Max.
  4. 4.0 4.1 4.2 4.3 4.4 Weisman, Greg (writer) & Oliva, Jay (director) (November 26, 2010). "Independence Day". Young Justice. Season 1. Episode 1. Cartoon Network.
  5. 5.0 5.1 5.2 5.3 5.4 Hopps, Kevin (writer) & Chang, Michael (director) (March 24, 2012). "Agendas". Young Justice. Season 1. Episode 22. Cartoon Network.
  6. 6.0 6.1 6.2 6.3 Weisman, Greg (writer) & Liu, Sam (director) (November 26, 2010). "Fireworks". (Part 2) Young Justice. Season 1. Episode 2. Cartoon Network.
  7. Weisman, Greg (writer) & Chang, Michael, Montgomery, Lauren (directors) (April 21, 2012). "Auld Acquaintance". Young Justice. Season 1. Episode 26. Cartoon Network.
  8. Krieg, Jim, Adams, Jeremy (writers) & Zwyer, Mel (director) (August 27, 2019). "Nevermore". Young Justice. Season 3. Episode 26. DC Universe.
  9. Stotts, Taneka (writer) & Sotta, Christina (director) (April 14, 2022). "Beyond the Grip of the Gods!". Young Justice. Season 4. Episode 18. HBO Max.