|“||Citizens of Yolkus! I, King Goobot V, give you...Sacrifice!||„|
|~ Goobot announcing the parental sacrifice and summoning of Poultra.|
He was voiced by Patrick Stewart in the movie (who is best known for playing Captain Jean-Luc Picard from Star Trek: The Next Generation, Pharaoh Seti I from The Prince of Egypt, Professor Xavier from the X-Men films, and the voice of Avery Bullock from American Dad), and S. Scott Bullock in the television series.
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.
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 the tyrannical, sarcastic, arrogant, greedy, evil, cunning, villainous, manipulative, self-centered, uncompromising, authoritative, and unscrupulous 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 is also the main antagonist of Jimmy Neutron's Nicktoon Blast, a ride in Nickelodeon Studios in Orlando, Florida.
- Goobot was originally going to be voiced by Kevin Michael Richardson for the movie.
- Even though Professor Calamitous is the main antagonist of the series, King Goobot is much more memorable.
- He traded Ooblar for sulfur butter.