Yagami Raito

Light Yagami (夜神 月, Yagami Raito) is the protagonist and anti-hero of Death Note. At the start of the series, he discovers the Death Note and uses it to kill criminals, becoming known to the people of Japan as Kira (based on the Japanese pronunciation of the English word "killer"). He is characterized as an extremely intelligent, but bored young man, who is frustrated by the lack of justice in the world. He is confident of his own intelligence and how smart he is in relation to others. Being a genius, Light feels that only he is fit to judge humanity and steer it on a proper moral course, viewing himself as the "god" of the new world he is creating.

He is voiced by Mamoru Miyano in the Japanese anime and by Brad Swaile in the English dub. In the live-action film, he is played by Tatsuya Fujiwara.

Taken from Wikipedia.