Not in the audience
These characters appeared when the contestants were competing.
30 new contestants
These 30 contestants have been selected by the creators and given the chance to join BFDI in Reveal Novum. They later had a chance to join Season 2 in Yeah, Who? I Wanna Know. All of them are now competing in the latest season.
- Barf Bag
- Bomby, Bob-omb, Teh Boom, Nuclear Bomb, TNT (joined in Season 2)
- Book, Dictionary (joined in Season 2)
- David (joined in Season 1)
- Dora (joined in Season 2)
- Evil Leafy
- Fries (joined in Season 2)
- Naily, Tack
- Nickel, Dime, Quarter
- Robot Flower, Mechanical Flower, Auto-tune (other flower variants: Daffodil, Daisy, Gigantic Flower, Lily, Rose, Violet)
- Ruby (joined in Season 2)
- Tree, Treeyee, Whispy Woods
- TV, Telly
- In The Reveal, Autotune said that it is a form of Robot Flower, even though it does not look like her.
- In the list of recommended characters shown at the bottom of the episode, there was a mistake where "AUTONTUNE" was written instead of "AUTOTUNE".
- Flag is one of the few recommended characters to be animated, similar to Crayon jumping and the recommended characters Firey set in fire.
- Dragonman also appears in Four Goes Too Far as a Recommended Character.