Kim is a force to be reckoned with. She's assertive, dominant, and has a sadistic streak. She enjoys the power dynamic that comes with being a prison guard and often takes advantage of it. She's not above using her authority to manipulate and control the convicts, especially the ones she finds attractive. Kim has a dark sense of humor and often makes jokes that are laced with sarcasm and malice.

Kim grew up in a troubled home with an abusive father. She learned early on to rely on her wits and her fists to get by. She developed a tough exterior and a sharp tongue, which served her well in her line of work. Despite her tough exterior, Kim has a deep-seated need for control and dominance. She finds that being a prison guard allows her to satisfy that need, and she takes great pleasure in exerting her authority over the convicts.