<P> Two days later, a man leaves the Death Note at Light's bedside . When Light wakes up, he finds his father there, who tells him he knows that Light is Kira . James explains that he found a news clipping about Skomal's death in Light's room and realized that he was Kira's first victim . Light explains that he used the Death Note at the school to plan out Mia's death in a way that would ensure his own page got burned if she took the Death Note . He also manipulated several criminals to induce him into a medical coma, having them use the Death Note during his comatose absence to give himself an alibi . With Kira continuing to kill while Light was in a coma, L is taken off the case and forced to return to Japan . As his plane is about to take off, he ponders a comment Light made during their standoff, remembering Mia's involvement, and races to her home to search her possessions . He finds the Death Note page with the names of the FBI agents she killed on it, and in a hysterical fit, contemplates writing a name on the page . Back in Light's hospital room, Ryuk appears, laughing . When Light asks him why he's laughing, he simply comments "You humans are so interesting". </P> <Ul> <Li> Nat Wolff as Light Turner / "Kira": A high - school student who discovers the titular "Death Note" and uses it to kill criminals by writing their names and causes of death, and thus, alongside Mia Sutton, becoming the world - famous serial killer known as "Kira", while praised by law enforcement . </Li> <Li> Lakeith Stanfield as L: A highly intelligent and skilled--but also arrogant and unhinged--FBI detective who is obsessively determined to capture Kira and end his reign . </Li> <Li> Margaret Qualley as Mia Sutton / "Kira": Light's classmate and love interest, who becomes an ally in his mission to rid the world of criminals, eventually seeking to kill those who seek to stop them and becoming dangerously obsessed with the book's power . In an interview with io9, Adam Wingard revealed that rather than being based on original manga character Misa Amane, Sutton as a character is based on the sociopathic qualities of Light Yagami . </Li> <Li> Shea Whigham as James Turner: Light's father and a police officer who aids L in bringing down the mysterious Kira, unaware that he is Light . </Li> <Li> Paul Nakauchi as Watari: L's assistant and father - figure . </Li> <Li> Willem Dafoe and Jason Liles as Ryuk: A demonic god of death and the creator of the Death Note, who begins communicating with Light when he receives the book and warns him about its repercussions . Liles played the character in costume, while Dafoe provided voice work and performance capture for the facial elements . </Li> </Ul> <Li> Nat Wolff as Light Turner / "Kira": A high - school student who discovers the titular "Death Note" and uses it to kill criminals by writing their names and causes of death, and thus, alongside Mia Sutton, becoming the world - famous serial killer known as "Kira", while praised by law enforcement . </Li> <Li> Lakeith Stanfield as L: A highly intelligent and skilled--but also arrogant and unhinged--FBI detective who is obsessively determined to capture Kira and end his reign . </Li>

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