Isabella "Bella" Marie Swan (later Bella Cullen) is a clumsy, accident-prone teenage girl who moves from Phoenix, Arizona, to Forks, Washington, to live with her father, Charlie. Though many boys are attracted to her when she arrives, she falls in love with Edward Cullen, a mysterious boy she discovers to be a vampire. In an attempt to protect Bella, Edward leaves her. Bella falls into a depression and is comforted by her friend, Jacob Black. She comes to love Jacob as well, though not as deeply as she loves Edward. She eventually marries Edward and, after a complicated pregnancy, gives birth to their daughter, Renesmee, and becomes a vampire at age 18. After Bella's transformation, she has the ability to shield her and others' minds from mental attacks.
Kristen Stewart plays Bella in the Twilight film series.