Citizens of Yolkus! I, King Goobot V, give you...Sacrifice!
~ Goobot announcing the parental sacrifice and summoning of Poultra.

King Goobot V (better known simply as King Goobot or Goobot) is the main antagonist of Nickelodeon's 6th feature film, Jimmy Neutron: Boy Genius, and a major antagonist in its TV series, The Adventures of Jimmy Neutron: Boy Genius. He is Jimmy's archenemy, Ooblar's older brother, the employer of the Yokian Fleet Commander and the tyrannical king of Yokus.

In the film, he was voiced by the legendary actor, Patrick Stewart, who is best known for playing Captain Jean-Luc Picard from Star Trek: The Next Generation, Pharaoh Seti I from DreamWorks' The Prince of Egypt, Professor Xavier from the X-Men films, and Avery Bullock from American Dad. In the television series, he was voiced by S. Scott Bullock.


In the film, King Goobot kidnaps all of the children's parents from Retroville, and tries to feed them to Poultra, a humongous alien chicken whom he and his people worshiped for centuries. He was aided by his majordomo, Ooblar and although he tried to off Jimmy and his friends after they rescued their parents, Jimmy grew to a huge size and defeated him.

In the TV series, King Goobot arrives on Earth and pretends to be nice to the citizens and even invite the citizens to the party, but Jimmy suspects something about Goobot's scheme before Goobot bans him from the party. Later, he steals one of Jimmy's inventions to revive Poultra and traps the citizens as he tries to feed them to Poultra, but Jimmy puts some Purple Flurp in Poultra's water bowl and Poultra explodes after burping. Goobot then goes back into space in a giant eggshell spaceship along with the other yokians and Ooblar before the citizens apologize to Jimmy for not listening to him earlier.

King Goobot is also the leader of the League of Villains, whose goal was to get revenge on Jimmy Neutron. He was later trapped in the Cretaceous period along with the other antagonists, and remained there.


King Goobot is portrayed as greedy, deceiving, and authoritative. He is the tyrannical, arrogant, manipulative, and self-centered king of Yokus. He is very power-hungry and dictatorial, so he is able to control over his warriors and his space armada. One of his most malevolent and duplicitous plans is when he theoretically tries to destroy Retroville.



  • Goobot also appears as the main antagonist of Jimmy Neutron's Nicktoon Blast, a ride in Nickelodeon Studios in Orlando, Florida.
  • For the film, Goobot was originally going to be voiced by the famous voice actor, Kevin Michael Richardson.
  • Even though Professor Calamitous is the main antagonist of the series, King Goobot is much more memorable.
  • He traded Ooblar for sulfur butter.
           Nickelodeon Movie Villains

Animated Features
Angelica Pickles | Coco LaBouche | Jean-Claude | King Goobot | Ooblar | Poultra | Alphonse Perrier du von Scheck | Nick Vermicelli | Big Bob Pataki | Sloan Blackburn | Bree Blackburn | Siri | Sheldon Plankton | Mr. Krabs | Karen Plankton | Dennis | Cyclops | Victor | Boat Jacker | Dag | Coyotes | Tortoise John | Rattlesnake Jake | Bad Bill | Hawk | Balthazar | Sakharine | Red Rackham | Burger-Beard | Lasombra

Live-Action Movies
Marion Hawthorne | Kurt Bozwell | Troy and Griffin | Roxanne | Henry Gates | Count Olaf | Bald Man | Hook-Handed Man | White-Faced Women | Mulgarath | Jake | Max | General Zhao | Fire Nation (Fire Lord Ozai, Zuko, & Azula) | Shredder | Foot Clan (Eric Sacks, Karai, Baxter Stockman & Bebop and Rocksteady) | Krang