Powers: Writes down human names into a death note and that human dies. The amount of life they had left is then added to the Shinigami's life.
Weaknesses: Is addicted to apples.
Bio: Shinigami - A death god.
Bored with the life of a death god Ryuk decided to have a little fun. He placed his Death Note, which he uses to kill humans, in our world. It was found by the student Light Yagami. Since Light had touched the Note he became the only human able to see Ryuk.
Light started using the power of the Death Note to kill criminals he thought deserved to die, ridding the world of evil. Ryuk stayed with him and Light provided him the apples he so desperatly wanted.