King Goobot V (Voiced by Patrick Stewart) is an alien from Jimmy Neutron. He is also the main antagonist on Jimmy Neutron. Jaden will meet him in Jaden meets Jimmy Neutron: Boy Genius.
- King Goobot will become Jeffrey's enemy in Jeffrey & Friends meet Jimmy Neutron: Boy Genius. Gaspar Le Gecko will work for him.
- King Goobot will return for revenge in Jeffrey & Friends' Storm Adventures of House of Villains.
- King Goobot will become Michael's enemy in Michael Buzz and Delete meet Jimmy Neutron Boy Genius. Scratch and Grounder will work for him.
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