Jo is an enthusiastic and intelligent hunter. Pretty much having been raised in the life, like Sam and Dean, she threw herself into her hunts. As she always felt that the lives they saved were worth it. Because, although she found them frightening. She always managed to pull herself together and get through it. Even if she did occasionally take too many risks to get the job done.
However, sometimes her emotions get the better of her and lead her to occasionally be foolish or irrational. She decided to be a hunter because of her grief over her father’s death, and it allowed her to feel close to him. And she held a grudge against the Winchester’s for a while after she found out that John Winchester was associated with her father’s death.
Outside of hunting, Jo likes to kick back and relax with a beer. And, to just have fun. She cares a lot about people and her friends. Considers Hunters her family. And, is determined to get her own way. No matter who stands in her way. Including her mother.
Still, she's grown up a lot since she first met the Winchester's. She's still enthusiastic about hunting. But, her reasons are different. It's less about her dad, and more about saving people. And, doing good. And, she's good at it. All of that potential she showed on her first hunt, has just been honed into an excellent and experienced hunter. Who is a force to be reckoned with. She still has a tendency to risk her life to get the job done, and save not just the people she cares about. But, those she doesn’t even know. She sees it as part of the life they chose to lead. They risk their lives, so that others don’t have to know what horrors there are out there.
Heterosexual. She's had a few flings over the years. And, is open to most things. As long as there's clear communication between both participants. She mostly seems to be attracted to confident men. Especially if they can hold their own in a fight.