In Twilight, Bella moves to her father's home in Forks, Washington, meets the mysterious Cullen family, and falls in love with Edward Cullen.
However, she soon discovers that the family is a coven of vampires.
Bella expresses a desire to become a vampire herself, against Edward's wishes.
In the second novel, New Moon, Edward and the other Cullens leave Forks in an effort to keep Bella safe from the vampire world.
Robert Pattinson plays Edward in the Twilight film series. In an attempt to learn more about Cullens, Bella flirts with Jacob, and he tells her tribe legends about "the cold ones", or vampires.
After Edward leaves Bella in New Moon, she spends much of her time with Jacob.
She comes to care for Jacob, though less than she loves Edward.
Taylor Lautner plays Jacob in the Twilight film series.
Carlisle Cullen (also known as Stregone Benefico) is Esme Cullen's husband and the adoptive father of Edward, Emmett and Alice Cullen, as well as Rosalie and Jasper Hale.
Carlisle has had centuries to perfect his medicinal talents, therefore making him an excellent doctor.
Unlike most vampires, he is not at all tempted by the scent of human blood, due to the over 300 years he has spent holding back his temptations.