When working on Invader Zim, Nickelodeon wanted the office where it was
being made to be decorated with pictures of Invader Zim's characters.
Nickelodeon wanted cute characters, but Jhonen decided to put up
pictures of Bloaty instead.
First name is pronounced "Joe-nen"
Suffers from hypnophobia, which is the extreme fear of falling asleep. As a result, many of his characters are insomniacs and the name of his company is Question Sleep, represented by a Z followed by a question mark, "Z?".