A 17-year-old human who moves to Forks to live with her father and becomes Edward's love interest. She is mature, selfless, and Edward is intrigued by her because he cannot read her mind.

Bella's father and the chief of Forks Police Department, who is deeply attached to his daughter and concerned for her well-being in Forks.

Edward’s adopted sister, a vampire with the ability to see potential futures, who is supportive of Edward’s relationship with Bella and abstains from human blood.

Edward’s adopted sister who resents becoming a vampire and is jealous of Bella’s humanity, preferring the company of her partner, Emmett.

The head of the Cullen family coven, a compassionate vampire who is a medical doctor and acts as a father figure to Edward, guiding the family to abstain from human blood.

A nomadic vampire with a supernatural ability to track others, acting as an antagonist who becomes obsessed with hunting Bella after encountering the Cullens.

A human student at Forks High School who is attracted to Bella and viewed as a rival by Edward, symbolizing a normal human life and stirring jealousy with his interest in Bella.