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Isabella Swan - Isabella, who prefers to be called Bella, is a 17-year-old girl. She leaves Phoenix, Arizona and moves to Forks, Washington to live with her father, Charlie so her mother can move to Florida with her new baseball-playing husband. She meets Edward Cullen in Forks High School and is immediately attracted to him. She later confesses to Edward what she has learned about him, which he admits to; they venture into their forbidden love, with Edward fighting against his thirst for Bella's blood. Bella has a kind and awkward personality that is more mature than most girls her age. She is highly intelligent and observant, noticing and then formulating theories about the Cullens' strange behaviors, physical features, and unusual abilities. At the novel's beginning, Bella finds, "the hardest part is making a decision, but once the decision is made, [she] can easily follow." As the novel progresses, Bella unconsciously learns how to make difficult choices and accept their consequences.[13]
Edward Cullen - Edward is a 104-year-old vampire who was transformed by Carlisle Cullen when he was near death with Spanish Influenza in 1918. He has a supernatural gift for reading people's minds. When he met Bella, he was immediately attracted to her because her thoughts are unreadable to him, and also to her strongly appealing blood scent. Edward tries to avoid Bella for her own safety, but fails. He notices Bella's attraction to him and warns her that he is dangerous. Eventually, he confesses the truth about himself to her. Since Edward's transformation into a vampire, he had never fallen in love nor believed that he needed to. He later realizes that his existence was completely pointless and without an aim. In Bella he finds compassion, love, acceptance and care.[13] In Twilight, Edward has a pessimistic personality influenced by Meyer's naturally pessimistic character.[14] His character was also influenced by Mr. Rochester of Jane Eyre who also sees himself as a monster.[15]
James - James is a vampire with an unusual ability to track people, whether humans or vampires. His competitive character loves a challenge, and Bella's scent appeals to him. When the Cullens react to defend her, James wants to take on the biggest game of his life, knowing that by hunting Bella, the Cullens will oppose him. James tracks Bella to Phoenix, and phones her to say that he has captured her mother and is keeping her in Bella's old ballet school. Bella goes there, unaware that her mother is actually safe in Florida. At the studio James reveals that in the 1920s he hunted a then-human Alice, whose blood smelled even better than Bella's. She was saved by a kindly old vampire who changed her into a vampire. James bites Bella, injecting his venom into her wrist. The Cullens arrive in time to save her and destroy James.
Jacob Black - Young Jacob Black may be a Bella's favourite non-vampire friend. He's a Quileute Indian and lives on La Push reservation, not that far from Forks. Upon first meeting, Bella is genuinely charmed and impressed by Jacob in many ways - he's a breath of fresh air compared to how clingy and suffocating Bella considers her Forks friends. Jacob and Bella's initial connection is that Jacobs dad, Billy, is friends with Charlie and Bella's truck used to belong to Billy. Bella goes on to learn that Jacob is really into rebuilding and fixing cars. Fairly quickly in the novel Jacob learns that he is similar to Bella in many ways. Charlie sees that Jacob is safe boyfriend material, the kind of guy Charlie would approve Bella dating.
Carlise Cullen - Carlisle is an incredibly handsome, conscientious, morally-sound doctor. As patriarch of the Cullen clan, Carlisle started the whole 'vegetarian' (no human) diet. Carlisle is a vampire with a conscience. As a human in the 17th century, Carlisle was the son of an ardently anti-'evil-being' (witches, vampires, werewolves, etc.) pastor. Carlisle followed in his father's footsteps and hunted and killed these 'monsters'. While chasing down a vampire, he was bitten. After hiding in a pile of rotting potatoes while he underwent his painful transformation into a vampire, Carlisle realised what had happened. Horrified at what he had become, he tried for years to kill himself before deciding to hunt only animals. He gained enough self-control that he could even handle being around human blood, and eventually became a doctor.