In her childhood, her two older sisters never played with her. It made her angry and turned her into a bully at school.
Jill's parents own Jill's Hamburger Palace. She is a teacher's pet and acts like an angel around adults, but when with teenagers and her siblings, she can be mean and be a bully. She is extremely spoiled by her parents because they are rich from a family business.
She's a minor antagonist rather than a supporting character in the story. Nia's boyfriend broke up with Nia to date Jill Charlene. Jill Charlene is very rude to Gregory and Nia. She cut her hair for a charity over the summer, so her hair is shorter than it used to be. She is quite attractive and has had many boyfriends before Ethan. Her good friend is Erika, although she doesn't really like Erika.
Even though she's manipulative and deceptive, she really does enjoy going to charities and likes to do volunteer work. She often is very blatant and makes fun of people who don't donate to charities, even if they don't have a lot of money. Her mother Jacqueline, and her father Joshua who started Jill's Hamburger Palace. Her older sister Jenna is in college, her older sister Jamie is a 12th grader, her younger brother Jordan is in 6th grade, and youngest sister Jean is in 2nd grade.