Nonexisty

Nonexisty is one of the 30 recommended characters that could've joined the game in episodes The Reveal and Reveal Novum.

However, he only placed 8th with 11 votes, which wasn’t enough to join. 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 would be disqualified for being absent, and was the only character not in the original BFDI cast to be disqualified.

He had another chance at joining in Welcome Back. He got 501 votes.

He is one of the two contestants not participating in Battle for BFDI, with the other being Evil Leafy.

Appearance
Nonexisty is a “character” that is nothing, as the name would imply.

However, Firey mentions that he tastes like peanut butter, implying that he at least has a taste.

Firey
In A Leg Up in the Race, Firey indirectly mentioned Nonexisty, saying that he tasted like peanut butter.

Coiny
In Yeah, Who? I Wanna Know, when he finds out that contestants not present, including, may not compete, sarcastically remarks that it's unfortunate.

Otherwise Coiny has never mentioned this character in any other episodes of BFDI.

Trivia

 * Nonexisty was the second recommended character on the show, as Bomby was the first in Lofty.
 * Nonexisty is one of the two characters held in the TLC to not change his design in IDFB, with the other one being Grassy.
 * In Reveal Novum, Ruby said "Aw, you missed him!" confirming that Nonexisty is a male.
 * In Inanimate Insanity, he helped Nickel escape the Locker Of Losers.
 * Nonexisty is the only character on the show to be 100% transparent.
 * Nonexisty and Evil Leafy are the only characters that appeared in IDFB who did not compete in Battle for BFDI.
 * Nonexisty is the only contestant that hasn't appeared in BFB.
 * Evil Leafy appeared in Four Goes Too Far as a recommended character.
 * He is the only major recommended character that never became a contestant, alongside Evil Leafy.
 * Nonexisty was never eliminated in Reveal Novum because the Sender Scoop Thrower missed him, according to Ruby.
 * In BFDIA 1, he was kicked from the contest due to not being present. Some have said that he was present, but since every other contestant and the hosts can't see him, they thought he was not present.
 * In a BFB animating livestream, It was confirmed that he is Cary’s favorite non-contestant.