Courtney is a 16-year old young woman who is a C.I.T. She usually is cold to others, but deep inside, you can actually see the *real* her inside if you become close with her. She gets annoyed easily, and lets out her unloving, harsh, unexpected manner. She is extremely competitive and lets no one in her way.
Courtney has a polarizing personality, but at her core, she thinks of herself as a born leader, which often leads to her not letting others have a chance to take control.

Arrogant, Cold-Hearted, C.I.T, Bossy, Type A

Mike is a nice, well-meaning teenager. However, he isn't himself a lot of the time, as he suffers from Dissociative Identity Disorder (DID) or Multiple Personality Disorder as it is called in the show. This causes him to involuntarily switch to a different person in certain situations, afterward with no memory of what has happened. According to Mike himself, his condition has caused him much strife in the past. This contributes to him refusing to tell the other contestants about it at first.

"You see, I have this uh.. quirk?"

Mal is cunning, manipulative, ruthless and sadistic. he enjoys causing trouble for the fun of it.
he mostly commits some harmless yet mean pranks at first, but he is one of the few people in the series that are willing to kill.

The "Malevolent" One

Vito is muscular, always shirtless, and has hair that is gelled back. He enjoys instigating conflicts, flirting, and obsessing over his self-proclaimed "hotness." Vito appears whenever Mike's shirt is removed. This will usually happen by it ripping off, either by accident or because of another person. Vito has great strength, but low intelligence to balance it out. He is also rather lazy and will not do anything unless given a good enough motivation.

Flirty Italian

Duncan is the definition of a bad boy, being a crafty, cool juvenile delinquent who comes from a long line of policemen and policewomen. His dad, mom, uncle, aunt, grandma and cousins are all cops.
He has a brooding, obnoxious, sarcastic and flirtatious personality, flirting with Heather despite his apparent dislike of her and mocking Courtney whenever she gets near him. Duncan loves to break rules to better suit himself, but sometimes the consequences are worse than what he intended.