Cassidy is Mia's incredibly superstitious best friend (who just happens to be half-angel). She is quite nervous, but probably has the most common sense of any member of her friend group. She isn't very assertive, and often gets dragged into Mia's harebrained schemes. She is generally very kind and soft-spoken, and likes making people smile. Cassidy is rather naive and idealistic, often to her own detriment. She has very good intuition, however, and is almost able to sense incoming danger.