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 is quite attractive and has had many boyfriends before Ethan.
Her good friend is Erika, although she doesn't really like Erika that much and doesn't listen to her.
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.
It is revealed that she gets married to Ethan and they have a child but Jill cheats on him, causing a divorce.
- She got asked by 5 different guys to the eighth grade dance.