Jill is actually Caroline Palmer in disguise from the Chameleon Cauliflower. Jill/Caroline is one of the In-Betweeners. She was friends with RJ and Nöelle, but after highschool she disappeared. She felt anger at the Cookbook, since she ruined her ballet auditions because of it. But, before her true identity as Caroline was confirmed, she acted as Terri Quinn’s campaign advisor and got closer to the Quinn family as a result of it.