Monica Morrell is a beautiful, yet cruel, psychopathic college student who is Claire's initial antagonist in the series. Her father (and then later her brother, Richard) is the human mayor of the secretly vampire-controlled city. She hates Claire because Claire made her look stupid.
A few years ago she was mad at Shane and burned down his house, which killed his sister, or at least that's what everyone believes while she profusely denies doing so. Nearly every time Monica has an encounter with Claire, she's mean to her. However, throughout the series, Claire and Monica develop a kind of truce, as Monica develops a bit of respect for Claire because of her braveness and courage; however, most of the time Monica doesn't show this. .