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The Staff
Crayon Box
Voiced by: StrangelyUnknown
- Pungeon Master: Loves to make groan-worthy puns, whether it’s about the challenge, elimination, or anything else.
Red Crayon
Voiced by: Echostrikes
Yellow Crayon
Voiced by: Gustaboy (OSO 1), NotARealGuy (OSO 2 onwards)
Green Crayon
Voiced by: Pewners (OSO 1), Hal emmerichs (OSO 2-5), ApricotStone (OSO 6 onwards)
Blue Crayon
Voiced by: Cyndamations (OSO 1-2), MD (OSO 3 onwards)
The Contestants
(Censored)
Rank: TBA
Voiced by: Stock Censored Sound Effect
Black Square
Blob
Coaster
Rank: TBA
Voiced by: Fluffy Bristle (OSO 1-3), SketchRocker (OSO 4-5), JessJaffa (OSO 6 onwards)
Coin
Cologne
Corny
Rank: TBA
Voiced by: RayInDaHaus
Dango
Rank: TBA
Green Dango voiced by: ImDomYouFool (OSO 1-2), MegaAnimazing (OSO 3 onwards)
White Dango voiced by: temonymous (OSO 1-5), Charingo (OSO 6 onwards)
Pink Dango voiced by: Lezan
Diamond
Rank: TBA
Voiced by: Yellow Pancake (OSO 1), juice (OSO 2-4), Sneef (OSO 5 onwards)
Extension Cord
Rank: TBA
Voiced by: StrawberrySoul (OSO 1-2), Minty (OSO 3 onwards)
Glowing Heart
Rank: TBA
Voiced by: thatcyberloser (OSO 1), kokomo (OSO 2 onwards)
- Flight: She is the only contestant with the ability to fly.
- Vocal Evolution: Her voice started out as high-pitched and raspy, but this raspiness disappeared after the first episode due to her getting a new voice actor.
Graffiti
Rank: TBA
Voiced by: Legoboynj (OSO 1-2), Urie (OSO 3 onwards)
- Living Drawing: He is literally living graffiti.
- Red Oni, Blue Oni: Graffiti's energetic and childish red oni to Guarana's level-headed and mature blue oni.
- Voluntary Shapeshifting: Graffiti has the ability to "paintshift" his body parts (or even his whole form) whenever the situation calls for it, such as turning his arm into a cannon or his whole body into a wig.
Guarana
Rank: TBA
Voiced by: MegaboyeMC
- Red Oni, Blue Oni: Guarana's level-headed and mature blue oni to Graffiti's childish and energetic red oni.
Holly
Rank: TBA
Voiced by: Veo (OSO 1-2), SongGame (OSO 3 onwards)
Incense Holder
Rank: TBA
Voiced by: Alejo The Blutritious (OSO 1-3), HriHof (OSO 4 onwards)
Inhaler
Rank: 31st
Voiced by: SolarEarwig (OSO 1-2), John Dubuc (OSO 3 onwards)
- Nerdy Inhaler: A literal one.
Loren
Rank: 32nd
Voiced by: LorenTzel
- (Loren) Author Avatar: Loren is this to LorenTzel, who also voices him.
- Token Human: The only human member of the main cast.
Microphone
Rank: TBA
Voiced by: Cheesy Hfj (OSO 1-2), Thatcyberloser (OSO 3 onwards)
Nail Clippers
Rank: TBA
Voiced by: Temmiemania (OSO 1-5), 934_ONE_derful (OSO 6 onwards)
Organic Fruit & Grain Bar
Rank: TBA
Voiced by: Diamondcup67
- Overly Long Name: Has the longest name out of all the contestants.
- The Stoic: Very rarely seen with anything other than a blank expression
OSO Novel
Rank: TBA
Voiced by: Peanut_Cupster
- The Omniscient: Being a novel adaptation of the show, it's unsurprising that she knows everything about it, including who wins.
Paintball
Rank: TBA
Voiced by: TippersWallaby
Penny
Rank: TBA
Voiced by: Brando (OSO 1), Pineapple (OSO 2 onwards)
Phonograph
Pitcher
Rank: TBA
Voiced by: GoodieBag
Putty
Rank: TBA
Voiced by: AleXendre (OSO 1-3), steppie (OSO 4-5), Aphid-Kirby (OSO 6 onwards)
Retainer
Rank: 30th
Voiced by: WebzForevz (OSO 1-3), Epicbattler3 (OSO 4 onwards)
Roulette Wheel
Rank: TBA
Voiced by: RedAnimations (OSO 1-4) Teearie (OSO 5 onwards)
Server
Rank: TBA
Voiced by: STAnimator (OSO 1-4), Nyazmas (OSO 5), Crystal Critique (OSO 6 onwards)
Sippy Cup
Rank: 29th
Voiced by: PenGamer67 (OSO 1-4) Putrid-Moss (OSO 5 onwards)
Tart
Rank: TBA
Voiced by: EvanFireHD (OSO 1-5), Skyler (OSO 6 onwards)
Vape
Rank: TBA
Voiced by: ConChillin' (OSO 1-5), EtherialPuffin (OSO 6 onwards)
