Leah Clearwater

Leah Clearwater is the only known female shape-shifting wolf in the history of the Quileute tribe. She transforms into a wolf during the events of New Moon, around the same time as her younger brother, Seth. This transformation is believed to be what caused the heart attack and subsequent death of their father, Harry. She dated Sam Uley for years, until her second cousin Emily came to visit and Sam imprinted on her. Sam thus left her for Emily, leaving Leah broken-hearted. As a result, Leah is very bitter and cynical, and constantly antagonizes the pack by thinking about things that the others want to avoid dwelling on. She also likes to antagonize Jacob by bringing up the fact that Bella plans to marry a vampire and become one herself, when it is clear that Jacob is still in love with Bella, whom Leah openly dislikes.

In Breaking Dawn, Leah joins Jacob's pack with the intention of breaking free of Sam since she is still heartbroken. She helps protect Bella and the Cullens, despite her extreme hatred for vampires. She shares several beliefs and insecurities with Jacob, such as why Sam imprinted on Emily, her regrets that she might be menopausal, and her inability to rise higher in pack rank due to her gender. As she spends more time in Jacob's pack, she becomes happier and makes notable changes in her attitude, becoming less troubling and negative. Later in the book, Jacob and Leah's feelings toward each other have become a trusted comradeship, in which she stands up for him, protects him, and becomes his second-in-command. As a human, Leah is described as beautiful by Bella. As a wolf, she is smaller than the others, light gray, and the fastest in the pack.

In 2010's The Twilight Saga: Eclipse, Leah will be played by Julia Jones.