I would call these more of headcanons than personalities tho xD

Jamila
-sweet & kind
-the smart one, knows mind games and & lots of tips and tricks
-can and will expose you
-if you try to accuse her, you'll be a ghost in no time
-m u f f i n s

Cactus
-looks so innocent, is actually evil
-probably the best actor
-evil mastermind
-you never see him coming
-tricks people easily, especially Cash

Omar
-chill guy
-clueless, doesn't know what's going on
-the guy who doesn't study for a test but gets the highest grade
-super lucky without even knowing it
-binge watches shows and anime for days straight
-sings the Friday song everyday but Friday

Melodie
-actually pretty nice
-is used to getting in trouble
-used to every situation possible
-gives you the "go hide, Natalia's here" look to warn you
-knows every personality type, type of friend, and every psychological fact
-knows whats about to go down when Natalia's mad at her

Dvir
-acts like a news reporter when a fight is going on
-has a 3 hour complation of Alab and Thiago fighting
-has a 3000 page book of his favourite songs
-casually singing songs and ignoring everyone who tells him to stop

Nikolai
-annoying kid
-likes to cause trouble
-spreads false rumours, espically about Rosalie
-confident about his plan but it always flunks
-tattle tale
-does everything to trigger Rosalie

Zahrah
-asleep most of the time
-but somehow is the only one awake when watching a movie
-pretends to listen to you but Is actually day dreaming
-doesnt care about the daily drama
-somehow will win every bet
-never challenge her to do something, she will do it.

Elaina (oop I did her twice)
-you never know if you're safe when you're around her
-sneaky
-always has a plan B
-expect the unexpected when around her
-terrible chef

Quinn
-always has a plan, it always works
-trustable
-somehow knows where everyone is at all times, and is always the hero
-one of the only people who don't mind Dvir singing
-has a whole closet of backup Nutella jars for some reason

Reza
-the scaredey cat, but loves horror movies
-has endless collections of random things
-the one with all the horrible jokes and pranks
-flirty and silly
-once hid in the same spot for a full day while playing hide and seek-and yes, he won the game

Nave
-smart
-sensitive
-you can never scare him no matter what you do
-doesnt cause trouble, has nice jokes
-best at cooking, all subjects, mostly everything really
-first awake everyday, has a party by himself when everyone's asleep
-helps everyone with their homework, and if you don't know a question Nave will rage on you and probably yeet you and your homework into outer space

Austin
-probably still tramitized about his unknown past
-if you don't have a good reason to call him, you're doomed
-gives you the "I'm not interested, shut up" look in every conversation
-spits out random facts at random times

Albert
-knows everyone's deepest darkest fears
-laughs uncontrollably at a joke
-guy who makes friends only to not get voted out
-gets traumatized when Natalia's mad at him