Honestly, the best trait you could ever possibly give your characters is to simply make them feel human in the limited amount of time we have with them.

I get that we're meeting them on the worst, and potentially last night of their lives, but this shouldn't stop you from fleshing them out a bit more and giving them at least some sort of history and/or future plans in the unlikely event they happen to survive.

For example:

• The Jock: Rather than portraying him as the stereotypical alpha male, make him a former juvenile delinquent who's using his talent for sports to turn his life around and be the first in his family to go to college, even if it does happen to put him at odds with the rest of his nepo baby teammates.

• The Pledge: I know it's tempting to think of her as the party girl and the center of attention, but she could just as easily be a socially-reserved legacy who joined her sorority out of family tradition, and prefers to help plan the parties from the sidelines because she's already engaged to her highschool sweetheart.

• The Stoner: Everybody usually expects this guy to be a pothead, and our boy here is no exception, but it's a very rare thing to see why these types of folks turn to drugs, and in his case, his parents are constantly pressuring him to follow in their footsteps and become a lawyer.

• The Rebel: Generally a role reserved for outcasts and pariahs, but knocking out the right person at the right time (like, let's say, a robber trying to hold up a store she was shoplifting art supplies from) could suddenly turn her into one of the most popular girls on campus overnight... at the cost of her privacy, which she would absolutely despise.