Main character in Tokyo Ghoul. He also appears in Tokyo Ghoul:re. First he is shown as Sasaki Haise after a timeskip, but later becomes Ken Kaneki again.
In the first season he´s shown with short black hair, but suffers from Marie Antoinette Syndrom and gets white hair instead. He becomes a ghoul in the first season due to an operation, where he gets the Kagune from Kamishiro Rize. While he´s not a true ghoul, he is called an one-eyed ghoul, because only his right eye turns red with complete black sclera. This is the reason why he wears an eyepatch.