Nonexisty

Nonexisty was one of the 30 recommended characters that could've joined the game in episode 17/18. He placed 8th with 11 votes. He was also up for voting to join the second season, but he only got 266 votes. Even if he had gotten enough, he still was disqualified for being nonexistent, and was the only character not in the original BFDI cast to be disqualified.

He made a cameo in episode 4 of Inanimate Insanity, where he helped Nickel to escape the Locker of Losers.

Trivia

 * Even though Nonexisty is supposed to be non-gendered, it has been proven that Nonexisty is male due to Ruby saying "Aw, you missed him!".
 * Nonexisty was also proven to be able to talk in episode 4 of Inanimate Insanity. However, being this was on Inanimate Insanity, it is still unknown that he can talk or not in BFDI. Another explanation for why Nonexisty only talked on Inanimate Insanity is that he might have known Nickel for longer than the 30 recommended characters and the 20 contestants, so he might have been shy in that scene. Thats another way to think about it. We still don't know if Nonexisty is anywhere in any of the competitions. He can't be destroyed because he doesn't exist, but he can be trapped because of what happened with the LOL.
 * Nonexisty apparently tastes of peanut butter. He made a cameo in A Leg Up in the Race, after the Announcer stated that all previous votes would be deducted from each contestant's score. Firey noticed that he tasted peanut butter, and an annotation appeared with the fan character credit.
 * Nonexisty was likely the second recommended character on the show, as Bomby was the first in Lofty.
 * If he can help Nickel escape the LOL, which mean that he can help the other recommended characters to escape.