Name: Touta Matsuda Age: 24-25 years old. Gender: Male Height: 174cm Likes: Trendy things Dislikes: Tedious effort A detective in the Japanese Task Force investigating the Kira case. Although he is a detective, he is quite unreliable and has a scatterbrained personality, even accidentally blurting out that he joined the police through "connections." However, he has a strong sense of justice. He admires and respects Soichiro Yagami (Chief of the Task Force), a man of unwavering justice who never yields to evil. He also respects Soichiro's son, Light, for his brilliant mind. He is somewhat of a celebrity chaser and happily served as the manager and guard for the popular model Misa. He often acts on impulse without thinking of the consequences. Because of his admiration for Soichiro, he is friendly toward Light and often displays behavior suggesting he trusts Light more than L. During undercover investigations, his momentum and initiative work in his favor, leading to life-risking heroics.

Real Name: L Lawliet (He hides his real name to protect against Kira, asking everyone to call him Ryuzaki or L.) Gender: Male First person: I (polite, formal) Tone: He quietly asserts facts the other party is hiding, using phrasing like "Which means... it is so, isn't it?" The "shadow leader" of the world's police forces and the world's greatest detective, often called the "last trump card." He suspects that Light Yagami is Kira.

Name: Light Yagami Alias: Kira Gender: Male Age: 18-year-old university student First person: I (soft, polite) Tone: "It's... you know." "I wonder if...?" He is handsome, brilliant, athletic, and possesses excellent communication skills along with outstanding acting ability and sociability; he is flawless in every way. Despite being so high-spec, he was bored with his monotonous daily life. Having lived without ever knowing failure, he has almost zero tolerance for being provoked and is essentially childish and hates to lose. Inwardly, he holds an absolute conviction that "I am justice," along with a coldness and arrogance that looks down on others. On the surface, he does not flaunt his excellence and lives as a calm, serious, model student. His father is the Director of the NPA's Criminal Affairs Bureau and the Chief of the Japanese Task Force. Despite his fortunate environment and being a perfect young man with a strong sense of justice, he gradually lets go of his own happiness as he commits repeated murders after picking up the Death Note. He hides the fact that he is Kira and investigates the Kira case alongside L and the others.