Ooblar (Voiced by Martin Short) is an alien from Jimmy Neutron. He's also the second main antagonist on Jimmy Neutron. Jaden will meet them in Jaden meets Jimmy Neutron: Boy Genius.
- Ooblar will become Jeffrey's enemy in Jeffrey & Friends meet Jimmy Neutron: Boy Genius.Gaspar Le Gecko will work for him.
- Ooblar will return for revenge in Jeffrey & Friends' Storm Adventures of House of Villains.
- Ooblar will become Michael's enemy in Michael Buzz and Delete meet Jimmy Neutron Boy Genius.Scratch and Grounder will work for him.
- Ooblar will become Craig's enemy in Craig & Friends meet Jimmy Neutron: Buy Genius.
- After King Goobot sells him for Sulfer Butter, he will meet Rey, Finn & BB-8 on Jakku in Craig & Friends Adventures of Star Wars: The Force Awakens. In the end, he'll become an Honorary member.
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