1) 16 year old male.
brash, idealistic, constantly putting others first to his detriment, desire to prove himself, ready-fire-aim approach to life, high pain tolerance (frequently gets injured and doesn't realize it), insists on fighting fair even against an opponent who is clearly cheating, wins through sheer determination, chivalrous, naive
2) 17 year old female.
perverted, conniving, wears her thoughts on her sleeve, entrepreneurial, sings gigs at jazz restaurants to earn tuition money, enjoys making people sexually uncomfortable, emo-ish fashion sense (her personality isn't though), dark/morbid sense humor
on the outside: fun, chill, irreverent, entertaining yet not in the spot light
on the inside: lonely, vulnerable, intimate, sexually passionate, comforting
3) 27 year old male
disciplined, restrained, used to be a violent murderer, polite, cares about certain people but confused as to how to show it, intensity junky, has a soft spot for cats, constantly drinking tea (either leaning against a wall in the background or drinking tea when people walk in on him), straightforward and practical, but extremely picky, somehow makes a ton of money, but no one knows what he does, enjoys going to the spa, frequently seen getting back rubs from multiple women in various exotic outfits.
he grew up in a poor, abusive family. his mother killed herself when he was 5 and his father was an ex-military commander and military commander suffering from severe post traumatic stress disorder, so he resolved to become an assassin and learn to defend himself and protect his little brother (an INFP 6w7 Sp/Sx). however, in order to pay for his lessons, he had to perform assassinations and collect large bounties (which gave him plenty of extra money which he hides). eventually, he was able to kill his father, take custody of his little brother and move to a safe apartment...or so he thought. you see, the assassin organization he joined is kinda like the mob.... you don't just leave and live to tell about it. so he spend the next few years moving from place with his little brother on the run from mobster assassins. naturally, they caught up to him several times and he was forced to kill a lot of them. eventually, he decided to do a 180, go beatrix kiddo on their ass, and eventually hunted down every last one of them including their leader. at this point, his brother was finally old enough to move out on his own and he could finally settle down and enjoy his life, investing the several hundred thousand dollars he'd earned as an assassin in a number of real estate properties and living off the cashflow from that.*
PS: there were initially 4, but I've already done a type me thread on the 4th one
Edit: new information added to character 3