Hannah Brooks is both the protagonist and the narrator of The Bodyguard. She is a competent and well-trained Executive Protection Agent—colloquially known as a bodyguard or an EPA—at the Glenn Schultz Executive Protection Agency. Despite being only five-foot-five and frequently underestimated for her size and plain appearance, she has a second-degree black belt in jujitsu and is more than capable of holding her own against her any potential assailants. Stung by her tendency to be frequently underestimated, Hannah is highly motivated to prove herself, especially when her male clients are patronizing, and she will often go out of her way to prove how capable she is despite her appearance.

Throughout The Bodyguard, Hannah is frequently described as being “ordinary,” typically when compared to Jack and his Hollywood colleagues. Unlike when she is described as weak or incapable, Hannah seems to believe that she is ordinary and rarely tries to disprove this description of her. Hannah does not change anything about herself for her assignment with Jack, refusing to get a makeover to better blend in as his bodyguard, and is hesitant to change any of her usual protocols for the assignment just because of his celebrity status.