 Bella Swan : The protagonist of the series , teenager Bella is a perpetually clumsy " danger magnet " with dark brown hair and brown eyes . She is often portrayed as having low self @-@ esteem and unable to comprehend Edward 's love for her . She has an immunity to supernatural abilities involving the mind , such as Edward 's mind @-@ reading ability . After her transformation into a vampire in the saga 's fourth installment , Bella acquires the ability to shield both herself and others from " mental harm " from other vampires . 
